Evidence-reviewed ingredient library

Find beauty products by what is inside

Plain-language guides to benefits, formula differences, pairings, myths, and the strength of the evidence—plus products connected only through a verified current US ingredient list.

Use area

Benefit

67 ingredients

A freshly cut aloe vera leaf segment with translucent gel and green rind rests on a softly lit pale sage ceramic surface.

Aloe VeraBotanical

Leaf-derived Aloe barbadensis materials used to condition skin and hold water; measured hydration evidence is limited and formula-specific.

For Skin · Body · Hair

Hydration · Softness · Skin comfort

Translucent ivory sculptural folds with glossy highlights and small clear droplets on a warm cream studio surface.

Alpha-ArbutinDefined compound

A defined hydroquinone glucoside with emerging formula-specific evidence for more even-looking tone—not the same ingredient as Arbutin or hydroquinone.

For Skin

Dark spots · Even-looking tone

Abstract still life of translucent blush forms, soft mauve and peach folds, and clear droplets on a warm ivory studio surface.

ArbutinDefined compound

The beta-D hydroquinone glucoside used in tone-focused formulas, with emerging product-specific evidence and separate identity from Alpha-Arbutin.

For Skin

More even-looking tone · Dark-spot care

Translucent pale sage droplets arranged around a softly folded blush film on a warm ivory surface, lit with gentle studio light and a grounding shadow.

Asiatic AcidDefined compound

A defined Centella-related triterpenoid with two tiny delivery-engineered human pilots—not an exfoliating acid or a synonym for cica.

For Skin

Skin conditioning · Antioxidant properties

Soft peach-toned translucent folded forms with a few clear droplets, arranged on a warm ivory studio surface with gentle shadows.

AsiaticosideDefined compound

A defined skin-conditioning Centella triterpenoid with two small, older formula-specific wrinkle studies; it is not a synonym for Centella, cica, madecassoside or asiatic acid.

For Skin

Skin conditioning · Fine-line care

A translucent abstract sculpture in pale sage and coral rests on a warm ivory surface, casting a soft directional shadow.

Madecassic AcidDefined compound

A defined Centella-related skin-conditioning triterpenoid; direct human evidence for the isolated ingredient is not established.

For Skin

Skin conditioning · Antioxidant properties

Two shallow plaster wells are joined by a winding coral relief path with one small celadon accent.

Azelaic AcidDefined compound

May support more even-looking post-blemish tone and calmer-looking skin in some formulas; results and tolerance depend on concentration, vehicle, and the complete formula.

For Skin

Post-blemish marks · More even tone · Clearer-looking skin

Translucent muted-rose abstract sculpture with flowing ridges, softly lit on a seamless warm peach surface.

BakuchiolDefined compound

A defined cosmetic ingredient with emerging formula-specific evidence for smoother-looking fine lines and more even-looking tone—not a retinoid or a pregnancy-safety shortcut.

For Skin · Makeup · Body

Fine lines · Uneven tone · Softer skin

Fine white niacinamide powder in a shallow ceramic dish on a pale peach background.

NiacinamideVitamin

Helps visibly brighten uneven tone and support the skin barrier.

For Skin · Makeup · Body · Hair

More even tone · Barrier support · Less shine

Fresh centella asiatica leaves arranged on a pale sage background.

Centella AsiaticaBotanical

Helps soothe visible redness and support the skin barrier.

For Skin · Makeup · Body · Hair

Hydration · Skin comfort · Moisture barrier support

Clear hydrogel spheres and droplets on a pale lilac background.

Hyaluronic AcidHumectant

Helps hydrate and visibly plump the skin.

For Skin · Makeup · Body · Hair

Hydration · A plumper look · Softer fine lines

Clear, glossy glycerin-inspired liquid folded on a pale buttercream surface.

GlycerinHumectant

A classic humectant that helps skin hold water and feel softer and smoother.

For Skin · Makeup · Body · Hair · Oral care

Hydration · Dry-skin comfort · Everyday moisture

A glossy, translucent liquid ribbon folded into a soft loop on a powder-blue surface, representing panthenol.

PanthenolVitamin

Pro-vitamin B5 that helps skin hold moisture and feel softer and more comfortable.

For Skin · Makeup · Body · Hair · Oral care

Hydration · Moisture barrier · Skin comfort

Overlapping ivory wax-like layers on a warm blush background, representing ceramide barrier lipids.

CeramidesBarrier lipid

Barrier-supporting lipids that help reduce moisture loss and ease visible dryness.

For Skin · Makeup · Body · Hair

Moisture retention · Barrier support · Softness

Seven dry amber, apricot, lavender and celadon relief rays spread diagonally across one warm-ivory matte plaster surface beside a tiny coral point.

Vitamin CAntioxidant family

An antioxidant ingredient family that can help brighten uneven-looking tone and soften visible dullness.

For Skin · Makeup · Oral care

Brighter-looking skin · Antioxidant care · Fine lines

A translucent amber membrane curves across a low coral frame, casting a golden shadow on a pale blush surface, with a lavender tile behind.

Vitamin EVitamin E family

A Vitamin E family used for formula antioxidant support or conditioning—with evidence that depends on the exact form.

For Skin · Makeup · Body · Hair · Oral care

Skin conditioning · Moisturizing care · Formula support

Pressed, pointed Camellia sinensis leaves partially magnified by a translucent jade glass lens on a warm oat surface.

Green TeaBotanical

Specific tea-leaf formulas may support hydration and a smoother, less shiny look.

For Skin · Makeup · Body · Hair

Antioxidants · Hydration · Smoother texture

Fresh Melaleuca alternifolia tea tree branchlets with narrow gray-green leaves on a warm stone background.

Tea Tree OilBotanical essential oil

An aromatic botanical oil used in lightweight formulas for oily, blemish-prone skin.

For Skin · Makeup · Body · Hair

Blemish-focused research · Herbal aroma

A single matte celadon ceramic piece lifted beside its matching recess in an ivory clay slab on a warm oat surface.

MadecassosideDefined compound

May support hydration and a smoother-looking surface in specific formulas.

For Skin · Makeup · Hair

Skin conditioning · Antioxidant properties

Fresh Houttuynia cordata stems with heart-shaped leaves and a white-bracted flower spike on a blush-pink background.

HeartleafBotanical

A botanical popular in K-beauty; human evidence is limited and formula-specific.

For Skin · Makeup · Body · Hair

Skin conditioning · Hydrating potential · Plant antioxidants

Pearlescent snail-mucin-inspired filaments suspended between two ivory ceramic arches on a powder-blush background.

Snail MucinAnimal-derived filtrate

An animal-derived filtrate with limited, formula-specific evidence for hydration and smoother-looking skin.

For Skin

Hydration · Smoother-looking skin · Skin conditioning

Three oversized translucent, softly faceted glass crystals arranged on a pale lavender stage above a blush background with a small coral accent.

AllantoinDefined compound

Helps soothe and soften dry, rough-feeling skin.

For Skin · Makeup · Body · Hair

Skin comfort · Softness · Conditioning care

Fine white caffeine crystals in a clear watch glass over a translucent coral-red disc on a pale blush surface.

CaffeineDefined compound

Studied for the look of puffiness and dark circles—with formula-specific results.

For Skin · Hair

Skin conditioning · Eye-area care

Two unripe green tangerines with a leaf on a frosted sage glass plinth against a pale blush background.

Green Tangerine ExtractBotanical

“Green” describes sourcing; skin results depend on the complete formula.

For Skin

Uneven tone · Botanical · Formula-dependent · K-beauty

Pleated lavender paper fan with a coral-red edge on a pale blush surface.

AdenosineDefined compound

A skin-conditioning ingredient commonly used to help skin look smoother and soften the appearance of fine lines.

For Skin · Makeup · Body

Fine-line care · Skin conditioning

Milky-white betaine crystals balanced on a coral crescent with a pale-lavender glass ring against a warm blush background.

BetaineHumectant

A humectant that helps maintain moisture balance, leaving skin feeling soft and comfortable.

For Skin · Makeup · Body · Hair

Moisture-binding care · Skin conditioning · Cleansing comfort

A blush paper ribbon curves across an ivory platform with a pale lavender panel behind.

PeptidesPeptide family

Some exact peptide forms may support smoother, firmer-looking skin; evidence varies by peptide and formula.

For Skin · Makeup · Hair

Fine lines · Smooth texture · Supple skin

Seven rose and lilac glass lozenges form a loose sequence across a blush pedestal against a muted plum backdrop.

PDRNDNA-fragment family

A DNA-fragment skin conditioner commonly used to help skin look smoother, plumper and more resilient.

For Skin · Hair

Fine-line care · Supple-looking skin · Moisture support

Clear squalane oil flowing over a blush ceramic crescent on an ivory surface

SqualaneEmollient

Softens dry-feeling skin and adds slip to skin, body, hair and makeup.

For Skin · Body · Makeup · Hair

Softness · Smooth feel · Dry-skin comfort

Fine dry pressed striations with soft amber, celadon, lavender and coral tones fade into a warm ivory matte surface.

GlutathioneTripeptide

A reduced tripeptide used as a cosmetic reducing agent. Small topical studies test specific concentrations and complete regimens—not every formula that lists GLUTATHIONE.

For Skin · Makeup

Uneven tone · Dark-spot appearance

An abstract oat-and-persimmon pressure rubbing crosses warm-ivory hanji paper.

Panax Ginseng Root ExtractBotanical root-extract family

A plant extract that helps condition skin, leaving it feeling softer and smoother.

For Skin · Makeup · Body · Hair

Softer-feeling skin · Plant-based extract

A translucent amber gel-like abstract form with small bubbles rests on a warm, speckled surface against a soft blush backdrop.

Galactomyces Ferment FiltrateFerment filtrate

A yeast-derived ferment filtrate used as a humectant and skin conditioner to help formulas leave skin feeling hydrated, soft and smooth.

For Skin

Hydration · Soft-feeling skin

An ivory abstract form with soft, flowing folds rests on a dusty rose seamless surface, casting a gentle studio shadow.

Tranexamic AcidDefined compound

May gradually improve the look of uneven tone in some leave-on formulas; the evidence is formula-specific and sun protection still matters.

For Skin

Uneven tone · Dark marks · Leave-on care

A translucent, ribbon-like loop rests on a muted plum surface under soft studio lighting.

Polyglutamic AcidGlutamic-acid polymer

A glutamic-acid polymer used to condition skin. Early lab evidence is promising, but product-level hydration depends on the complete formula.

For Skin · Makeup · Body

Water-binding care · Skin conditioning

Fine ivory, lavender and celadon mineral flecks sit flush in a continuous muted-persimmon lime-plaster surface.

RetinalDefined compound

May gradually soften the look of fine lines and uneven texture in specific leave-on formulas, with careful introduction.

For Skin · Body

Fine lines · Smoother texture · Even-looking tone

Three open mauve, apricot and auburn grooves arc across one warm-ivory matte plaster surface beside a tiny coral point.

RetinolDefined compound

May help soften the look of fine lines and uneven texture with consistent, carefully introduced leave-on use.

For Skin

Fine lines · Even-looking tone · Smoother texture

A small mound of fine white powder on a soft blush-lilac surface, photographed with diffused light and a gentle shadow.

Salicylic AcidDefined compound

An exfoliating ingredient that may help rough-feeling skin look and feel smoother.

For Skin · Makeup · Body · Hair

Pore care · Smoother texture · Blemish-prone skin

A freshly cut, pale root cross-section standing on a warm peach studio surface, with soft directional light and a long grounding shadow.

Dioscorea Japonica Root ExtractBotanical

Japanese mountain yam root extract with one declared function, skin conditioning; no human cosmetic study of the ingredient was located.

For Skin · Body

Skin conditioning · Botanical extract · Water-phase material · Mucilaginous

A shallow translucent aqua pool with soft ripples, suspended droplets and scattered pale mineral-like fragments on a seamless blue surface.

Sea WaterMineral-bearing water

Filtered sea water used as a mineral-bearing water phase; its declared roles are humectant and solvent, and leave-on cosmetic evidence is limited.

For Skin · Body

Mineral-bearing water phase · Humectant role · Lightweight feel · Marine

A translucent blush-pink abstract sculptural cluster with glossy folds and crystal-like facets on a warm ivory surface, casting a soft shadow.

Succinic AcidDefined compound

A small dicarboxylic acid whose declared cosmetic function is pH buffering; the blemish evidence is mouse and laboratory work, not human cosmetic trials.

For Skin · Body

Formula pH balance

A whole shea nut, an open shell with its pale kernel, and a small curl of raw shea butter rest on a warm-ivory surface.

Shea ButterPlant butter

A rich plant butter used to soften dry-feeling skin and add body and glide to skin, body, makeup, and hair formulas.

For Skin · Body · Makeup · Hair

Softness · Moisture retention · Rich texture

Golden oil droplets rest on a pearlescent curved sculpture beside a translucent botanical-like flourish on a warm ivory backdrop.

Sunflower Seed OilEmollient

A seed-derived emollient with small human hydration and barrier signals; acne, eczema-treatment and universal non-comedogenic claims are not established.

For Skin · Makeup · Body · Hair

Softness · Moisture retention · Barrier support

Golden oil pours into a glossy pool on a warm ivory surface, with soft highlights, a gentle shadow and ample negative space.

Jojoba OilEmollient

A wax-ester-rich seed oil used to condition skin and hair; direct human evidence for acne, barrier repair or other treatment claims is limited and formula-specific.

For Skin · Makeup · Body · Hair

Softer-feeling skin · Smooth texture

Abstract ivory and pale peach glossy fluid sculpture suspended above a warm cream seamless surface, with soft studio lighting and a gentle grounding shadow.

Lactic AcidDefined compound

An alpha hydroxy acid used for pH control and skin conditioning; specific formulas may smooth rough-feeling texture, but results and irritation are formula-specific.

For Skin · Makeup · Body · Hair

Smooth texture · Fresh-looking skin · Moisture support

Fresh purslane sprigs with fleshy green leaves and clear water droplets arranged on a softly lit ivory surface.

Portulaca Oleracea ExtractBotanical

A whole-plant purslane extract used as a cosmetic humectant and skin conditioner; visible calming evidence is limited and formula-specific.

For Skin · Makeup · Body

Moisture support · Skin conditioning

A muted sage-and-silver mugwort-leaf pressure print lies flush in warm-ivory hanji beside a tiny coral pinprick.

Mugwort Leaf ExtractBotanical

An Artemisia princeps leaf extract used to condition skin; direct human evidence for standalone calming or barrier results is limited and formula-specific.

For Skin · Makeup · Hair

Skin conditioning · Botanical extract

An ivory paper-thread rice panicle curves across warm hanji beside one tiny coral tack stitch.

Rice ExtractBotanical

An Oryza sativa seed extract commonly used to condition skin, helping it feel softer and look more refreshed.

For Skin · Makeup · Hair

Skin conditioning · Hydration research · Rice-derived

One knobby ochre turmeric rhizome with an attached vivid orange cut face rests on warm-ivory hanji beside a tiny coral point.

Turmeric Root ExtractBotanical

A Curcuma longa root extract used to condition skin; human evidence for visible tone or smoothing is limited and formula-specific.

For Skin · Hair

Skin conditioning · Smoothing research · Botanical extract

A loose diagonal trail of small milky xylitol crystals crosses a warm-ivory surface beside a tiny coral point.

XylitolSugar alcohol/polyol

A humectant in cosmetics and a noncariogenic sugar substitute in some oral products—not an FDA anticaries active.

For Oral care · Skin · Body · Makeup

Sugar-free sweetness · Oral-care ingredient

Translucent gel lattice draped over two coral ceramic supports on a warm ivory surface.

Beta-GlucanPolysaccharide

A moisture-supporting polysaccharide commonly used to help skin feel hydrated, soothed and more comfortable.

For Skin · Makeup · Body · Hair

Hydration · Skin comfort · Supple feel

A translucent butter-yellow strip folds into a squared channel around a celadon glass tile on warm ivory plaster, with a narrow coral inner edge.

BiotinVitamin B7

A cosmetic hair- and skin-conditioning vitamin with limited evidence for stand-alone topical hair-growth claims.

For Hair · Skin · Makeup

Hair conditioning · Scalp care

Four fused amber, apricot, lavender and celadon ring outlines form a flat steroid-like pattern on warm-ivory plaster beside a tiny coral diamond.

CholesterolBarrier lipid

A defined sterol and native barrier lipid used to condition skin, soften feel and help structure emulsions. Finished-product performance depends on the full formula.

For Skin · Makeup · Body

Barrier-lipid context · Dry-feeling skin · Softness · Formula ratios

Milky-white gluconolactone crystals and fine powder in a frosted-glass dish with a pale-lilac ring.

GluconolactoneDefined compound

A gentle exfoliating PHA that helps smooth skin texture while attracting moisture.

For Skin · Body

Smooth texture · Moisture support · Conditioning care

A flowing band of apricot, celadon, coral and lavender marbling crosses textured warm-ivory paper.

TrehaloseHumectant

A defined non-reducing disaccharide used as a humectant and moisturizer. It can support a water-focused formula, but label presence cannot prove dose or results.

For Skin · Body

Humectant role · Water-focused formulas · Soft skin feel · Evidence limits

A sculptural cluster of glossy, translucent peach and coral gel-like folds rests on a pale sage surface, casting a soft shadow.

EctoinDefined compound

A water-binding osmolyte used in barrier-focused formulas, with emerging finished-formula evidence for hydration and dry, stressed skin—not a sunscreen or eczema treatment.

For Skin

Hydration · Skin comfort · Supple-looking skin

A softly folded peach-toned abstract form rests on a warm ivory surface, lit from the upper left with a gentle grounding shadow.

Dipotassium GlycyrrhizateDefined salt

A defined licorice-related salt used for skin conditioning, with emerging finished-formula evidence for hydration and comfort.

For Skin

Skin conditioning · Everyday comfort

Nine rounded ivory ceramic tiles with lilac edges form a staggered mosaic on a coral plinth.

Hydrolyzed KeratinProtein hydrolysate

May temporarily improve hair feel, smoothness and manageability in a well-formulated product.

For Hair · Skin

Hair conditioning · Care for dry lengths

A label-free ivory and coral airless pump bottle stands beside its matching cap and a glossy peach serum ribbon on a warm ivory surface.

Hydrolyzed CollagenProtein hydrolysate

An animal- or fish-collagen hydrolysate used to condition skin and hair and support surface moisture in complete formulas—not to replace dermal collagen.

For Skin · Makeup · Hair

Skin conditioning · Surface moisture · Hair conditioning · Evidence limits

Abstract ivory folds and glossy rounded forms arranged on a warm peach surface with soft studio light and a gentle shadow.

Bifida Ferment LysateFerment lysate

A biotechnology-derived ferment lysate used to condition skin; direct human evidence is limited to specific materials and complete formulas.

For Skin

Skin conditioning · Dry-skin comfort · Barrier support

Amber-peach translucent gel pools and glossy folds arranged with a few stylized soybeans on a warm ivory surface.

Soybean Ferment ExtractFerment extract

A fermented soybean extract commonly used to condition skin and help it feel softer, smoother and well cared for.

For Skin

Skin conditioning · Softness · Smooth feel

Pomegranate Ferment ExtractFerment extract

A fermented pomegranate fruit extract commonly used to condition skin and help it feel softer, smoother and refreshed.

For Skin

Skin conditioning · Softness · Smooth feel

Translucent amber gel droplets and a glossy folded smear arranged on a cream ceramic plate against a warm ivory backdrop.

Barley Ferment FiltrateFerment filtrate

A fermented barley filtrate that helps hold moisture in formulas, supporting softer, more hydrated-feeling skin.

For Skin

Humectant · Hydration support · Softness

A pale blush, translucent gel-like folded form with a clear droplet, photographed on a seamless blush surface with soft studio light and a grounding shadow.

HydrocolloidPolysaccharide

The gel-forming layer that absorbs surface fluid and keeps a spot smoothly covered.

For Skin

Surface-fluid absorption · Spot coverage · Less picking

An abstract cluster of glossy ivory spheres and softly folded forms on a warm cream surface, lit by gentle directional studio light against a blush-beige backdrop.

PhytosphingosineSphingoid base

A skin- and hair-conditioning sphingoid base with limited human hydration evidence; it is related to, but not the same as, ceramides.

For Skin · Hair

Skin conditioning · Moisture support

Three dried licorice-root pieces, including one pale cut face, rest on a warm-ivory surface beside faint lavender and celadon shadows.

Licorice Root ExtractBotanical root-extract family

Botanical root extracts used to condition skin; direct human evidence for visible tone or calming results is limited and formula-specific.

For Skin · Makeup · Body · Hair · Oral care

Softness · Skin comfort · Even-looking tone

A flat smoky-amber color field with soft celadon, lavender and coral notes is absorbed into a warm ivory matte surface.

Propolis ExtractBee-derived extract

A bee-derived resin extract used to condition skin. Small human studies test particular standardized or multi-ingredient formulas, not every propolis cosmetic.

For Skin · Makeup · Body · Hair · Oral care

Skin conditioning · Antioxidant compounds · Bee-derived

Three short celadon, lavender and coral pigment marks sit in the weave of a warm ivory textile surface.

Fluoride ToothpasteOTC anticaries active family

Helps prevent cavities when used as directed in a toothpaste with a verified fluoride active.

For Oral care

Cavity protection · Stronger enamel · Daily care

Beauty Ingredient Library | Sleepy Hello

Evidence-reviewed ingredient library

Find beauty products by what is inside

Plain-language guides to benefits, formula differences, pairings, myths, and the strength of the evidence—plus products connected only through a verified current US ingredient list.

Use area

Benefit

67 ingredients

Aloe VeraBotanical

Leaf-derived Aloe barbadensis materials used to condition skin and hold water; measured hydration evidence is limited and formula-specific.

For Skin · Body · Hair

Hydration · Softness · Skin comfort

Alpha-ArbutinDefined compound

A defined hydroquinone glucoside with emerging formula-specific evidence for more even-looking tone—not the same ingredient as Arbutin or hydroquinone.

For Skin

Dark spots · Even-looking tone

ArbutinDefined compound

The beta-D hydroquinone glucoside used in tone-focused formulas, with emerging product-specific evidence and separate identity from Alpha-Arbutin.

For Skin

More even-looking tone · Dark-spot care

Asiatic AcidDefined compound

A defined Centella-related triterpenoid with two tiny delivery-engineered human pilots—not an exfoliating acid or a synonym for cica.

For Skin

Skin conditioning · Antioxidant properties

AsiaticosideDefined compound

A defined skin-conditioning Centella triterpenoid with two small, older formula-specific wrinkle studies; it is not a synonym for Centella, cica, madecassoside or asiatic acid.

For Skin

Skin conditioning · Fine-line care

Madecassic AcidDefined compound

A defined Centella-related skin-conditioning triterpenoid; direct human evidence for the isolated ingredient is not established.

For Skin

Skin conditioning · Antioxidant properties

Azelaic AcidDefined compound

May support more even-looking post-blemish tone and calmer-looking skin in some formulas; results and tolerance depend on concentration, vehicle, and the complete formula.

For Skin

Post-blemish marks · More even tone · Clearer-looking skin

BakuchiolDefined compound

A defined cosmetic ingredient with emerging formula-specific evidence for smoother-looking fine lines and more even-looking tone—not a retinoid or a pregnancy-safety shortcut.

For Skin · Makeup · Body

Fine lines · Uneven tone · Softer skin

NiacinamideVitamin

Helps visibly brighten uneven tone and support the skin barrier.

For Skin · Makeup · Body · Hair

More even tone · Barrier support · Less shine

Centella AsiaticaBotanical

Helps soothe visible redness and support the skin barrier.

For Skin · Makeup · Body · Hair

Hydration · Skin comfort · Moisture barrier support

Hyaluronic AcidHumectant

Helps hydrate and visibly plump the skin.

For Skin · Makeup · Body · Hair

Hydration · A plumper look · Softer fine lines

GlycerinHumectant

A classic humectant that helps skin hold water and feel softer and smoother.

For Skin · Makeup · Body · Hair · Oral care

Hydration · Dry-skin comfort · Everyday moisture

PanthenolVitamin

Pro-vitamin B5 that helps skin hold moisture and feel softer and more comfortable.

For Skin · Makeup · Body · Hair · Oral care

Hydration · Moisture barrier · Skin comfort

CeramidesBarrier lipid

Barrier-supporting lipids that help reduce moisture loss and ease visible dryness.

For Skin · Makeup · Body · Hair

Moisture retention · Barrier support · Softness

Vitamin CAntioxidant family

An antioxidant ingredient family that can help brighten uneven-looking tone and soften visible dullness.

For Skin · Makeup · Oral care

Brighter-looking skin · Antioxidant care · Fine lines

Vitamin EVitamin E family

A Vitamin E family used for formula antioxidant support or conditioning—with evidence that depends on the exact form.

For Skin · Makeup · Body · Hair · Oral care

Skin conditioning · Moisturizing care · Formula support

Green TeaBotanical

Specific tea-leaf formulas may support hydration and a smoother, less shiny look.

For Skin · Makeup · Body · Hair

Antioxidants · Hydration · Smoother texture

Tea Tree OilBotanical essential oil

An aromatic botanical oil used in lightweight formulas for oily, blemish-prone skin.

For Skin · Makeup · Body · Hair

Blemish-focused research · Herbal aroma

MadecassosideDefined compound

May support hydration and a smoother-looking surface in specific formulas.

For Skin · Makeup · Hair

Skin conditioning · Antioxidant properties

HeartleafBotanical

A botanical popular in K-beauty; human evidence is limited and formula-specific.

For Skin · Makeup · Body · Hair

Skin conditioning · Hydrating potential · Plant antioxidants

Snail MucinAnimal-derived filtrate

An animal-derived filtrate with limited, formula-specific evidence for hydration and smoother-looking skin.

For Skin

Hydration · Smoother-looking skin · Skin conditioning

AllantoinDefined compound

Helps soothe and soften dry, rough-feeling skin.

For Skin · Makeup · Body · Hair

Skin comfort · Softness · Conditioning care

CaffeineDefined compound

Studied for the look of puffiness and dark circles—with formula-specific results.

For Skin · Hair

Skin conditioning · Eye-area care

Green Tangerine ExtractBotanical

“Green” describes sourcing; skin results depend on the complete formula.

For Skin

Uneven tone · Botanical · Formula-dependent · K-beauty

AdenosineDefined compound

A skin-conditioning ingredient commonly used to help skin look smoother and soften the appearance of fine lines.

For Skin · Makeup · Body

Fine-line care · Skin conditioning

BetaineHumectant

A humectant that helps maintain moisture balance, leaving skin feeling soft and comfortable.

For Skin · Makeup · Body · Hair

Moisture-binding care · Skin conditioning · Cleansing comfort

PeptidesPeptide family

Some exact peptide forms may support smoother, firmer-looking skin; evidence varies by peptide and formula.

For Skin · Makeup · Hair

Fine lines · Smooth texture · Supple skin

PDRNDNA-fragment family

A DNA-fragment skin conditioner commonly used to help skin look smoother, plumper and more resilient.

For Skin · Hair

Fine-line care · Supple-looking skin · Moisture support

SqualaneEmollient

Softens dry-feeling skin and adds slip to skin, body, hair and makeup.

For Skin · Body · Makeup · Hair

Softness · Smooth feel · Dry-skin comfort

GlutathioneTripeptide

A reduced tripeptide used as a cosmetic reducing agent. Small topical studies test specific concentrations and complete regimens—not every formula that lists GLUTATHIONE.

For Skin · Makeup

Uneven tone · Dark-spot appearance

Panax Ginseng Root ExtractBotanical root-extract family

A plant extract that helps condition skin, leaving it feeling softer and smoother.

For Skin · Makeup · Body · Hair

Softer-feeling skin · Plant-based extract

Galactomyces Ferment FiltrateFerment filtrate

A yeast-derived ferment filtrate used as a humectant and skin conditioner to help formulas leave skin feeling hydrated, soft and smooth.

For Skin

Hydration · Soft-feeling skin

Tranexamic AcidDefined compound

May gradually improve the look of uneven tone in some leave-on formulas; the evidence is formula-specific and sun protection still matters.

For Skin

Uneven tone · Dark marks · Leave-on care

Polyglutamic AcidGlutamic-acid polymer

A glutamic-acid polymer used to condition skin. Early lab evidence is promising, but product-level hydration depends on the complete formula.

For Skin · Makeup · Body

Water-binding care · Skin conditioning

RetinalDefined compound

May gradually soften the look of fine lines and uneven texture in specific leave-on formulas, with careful introduction.

For Skin · Body

Fine lines · Smoother texture · Even-looking tone

RetinolDefined compound

May help soften the look of fine lines and uneven texture with consistent, carefully introduced leave-on use.

For Skin

Fine lines · Even-looking tone · Smoother texture

Salicylic AcidDefined compound

An exfoliating ingredient that may help rough-feeling skin look and feel smoother.

For Skin · Makeup · Body · Hair

Pore care · Smoother texture · Blemish-prone skin

Dioscorea Japonica Root ExtractBotanical

Japanese mountain yam root extract with one declared function, skin conditioning; no human cosmetic study of the ingredient was located.

For Skin · Body

Skin conditioning · Botanical extract · Water-phase material · Mucilaginous

Sea WaterMineral-bearing water

Filtered sea water used as a mineral-bearing water phase; its declared roles are humectant and solvent, and leave-on cosmetic evidence is limited.

For Skin · Body

Mineral-bearing water phase · Humectant role · Lightweight feel · Marine

Succinic AcidDefined compound

A small dicarboxylic acid whose declared cosmetic function is pH buffering; the blemish evidence is mouse and laboratory work, not human cosmetic trials.

For Skin · Body

Formula pH balance

Shea ButterPlant butter

A rich plant butter used to soften dry-feeling skin and add body and glide to skin, body, makeup, and hair formulas.

For Skin · Body · Makeup · Hair

Softness · Moisture retention · Rich texture

Sunflower Seed OilEmollient

A seed-derived emollient with small human hydration and barrier signals; acne, eczema-treatment and universal non-comedogenic claims are not established.

For Skin · Makeup · Body · Hair

Softness · Moisture retention · Barrier support

Jojoba OilEmollient

A wax-ester-rich seed oil used to condition skin and hair; direct human evidence for acne, barrier repair or other treatment claims is limited and formula-specific.

For Skin · Makeup · Body · Hair

Softer-feeling skin · Smooth texture

Lactic AcidDefined compound

An alpha hydroxy acid used for pH control and skin conditioning; specific formulas may smooth rough-feeling texture, but results and irritation are formula-specific.

For Skin · Makeup · Body · Hair

Smooth texture · Fresh-looking skin · Moisture support

Portulaca Oleracea ExtractBotanical

A whole-plant purslane extract used as a cosmetic humectant and skin conditioner; visible calming evidence is limited and formula-specific.

For Skin · Makeup · Body

Moisture support · Skin conditioning

Mugwort Leaf ExtractBotanical

An Artemisia princeps leaf extract used to condition skin; direct human evidence for standalone calming or barrier results is limited and formula-specific.

For Skin · Makeup · Hair

Skin conditioning · Botanical extract

Rice ExtractBotanical

An Oryza sativa seed extract commonly used to condition skin, helping it feel softer and look more refreshed.

For Skin · Makeup · Hair

Skin conditioning · Hydration research · Rice-derived

Turmeric Root ExtractBotanical

A Curcuma longa root extract used to condition skin; human evidence for visible tone or smoothing is limited and formula-specific.

For Skin · Hair

Skin conditioning · Smoothing research · Botanical extract

XylitolSugar alcohol/polyol

A humectant in cosmetics and a noncariogenic sugar substitute in some oral products—not an FDA anticaries active.

For Oral care · Skin · Body · Makeup

Sugar-free sweetness · Oral-care ingredient

Beta-GlucanPolysaccharide

A moisture-supporting polysaccharide commonly used to help skin feel hydrated, soothed and more comfortable.

For Skin · Makeup · Body · Hair

Hydration · Skin comfort · Supple feel

BiotinVitamin B7

A cosmetic hair- and skin-conditioning vitamin with limited evidence for stand-alone topical hair-growth claims.

For Hair · Skin · Makeup

Hair conditioning · Scalp care

CholesterolBarrier lipid

A defined sterol and native barrier lipid used to condition skin, soften feel and help structure emulsions. Finished-product performance depends on the full formula.

For Skin · Makeup · Body

Barrier-lipid context · Dry-feeling skin · Softness · Formula ratios

GluconolactoneDefined compound

A gentle exfoliating PHA that helps smooth skin texture while attracting moisture.

For Skin · Body

Smooth texture · Moisture support · Conditioning care

TrehaloseHumectant

A defined non-reducing disaccharide used as a humectant and moisturizer. It can support a water-focused formula, but label presence cannot prove dose or results.

For Skin · Body

Humectant role · Water-focused formulas · Soft skin feel · Evidence limits

EctoinDefined compound

A water-binding osmolyte used in barrier-focused formulas, with emerging finished-formula evidence for hydration and dry, stressed skin—not a sunscreen or eczema treatment.

For Skin

Hydration · Skin comfort · Supple-looking skin

Dipotassium GlycyrrhizateDefined salt

A defined licorice-related salt used for skin conditioning, with emerging finished-formula evidence for hydration and comfort.

For Skin

Skin conditioning · Everyday comfort

Hydrolyzed KeratinProtein hydrolysate

May temporarily improve hair feel, smoothness and manageability in a well-formulated product.

For Hair · Skin

Hair conditioning · Care for dry lengths

Hydrolyzed CollagenProtein hydrolysate

An animal- or fish-collagen hydrolysate used to condition skin and hair and support surface moisture in complete formulas—not to replace dermal collagen.

For Skin · Makeup · Hair

Skin conditioning · Surface moisture · Hair conditioning · Evidence limits

Bifida Ferment LysateFerment lysate

A biotechnology-derived ferment lysate used to condition skin; direct human evidence is limited to specific materials and complete formulas.

For Skin

Skin conditioning · Dry-skin comfort · Barrier support

Soybean Ferment ExtractFerment extract

A fermented soybean extract commonly used to condition skin and help it feel softer, smoother and well cared for.

For Skin

Skin conditioning · Softness · Smooth feel

Pomegranate Ferment ExtractFerment extract

A fermented pomegranate fruit extract commonly used to condition skin and help it feel softer, smoother and refreshed.

For Skin

Skin conditioning · Softness · Smooth feel

Barley Ferment FiltrateFerment filtrate

A fermented barley filtrate that helps hold moisture in formulas, supporting softer, more hydrated-feeling skin.

For Skin

Humectant · Hydration support · Softness

HydrocolloidPolysaccharide

The gel-forming layer that absorbs surface fluid and keeps a spot smoothly covered.

For Skin

Surface-fluid absorption · Spot coverage · Less picking

PhytosphingosineSphingoid base

A skin- and hair-conditioning sphingoid base with limited human hydration evidence; it is related to, but not the same as, ceramides.

For Skin · Hair

Skin conditioning · Moisture support

Licorice Root ExtractBotanical root-extract family

Botanical root extracts used to condition skin; direct human evidence for visible tone or calming results is limited and formula-specific.

For Skin · Makeup · Body · Hair · Oral care

Softness · Skin comfort · Even-looking tone

Propolis ExtractBee-derived extract

A bee-derived resin extract used to condition skin. Small human studies test particular standardized or multi-ingredient formulas, not every propolis cosmetic.

For Skin · Makeup · Body · Hair · Oral care

Skin conditioning · Antioxidant compounds · Bee-derived

Fluoride ToothpasteOTC anticaries active family

Helps prevent cavities when used as directed in a toothpaste with a verified fluoride active.

For Oral care

Cavity protection · Stronger enamel · Daily care