Numbuzin numbers explained: start with No.5 for spots, No.3 for texture
Updated October 22, 2026
Numbuzin is a good, fairly priced brand once you know that its numbers name a skin concern, not a strength or a routine step. For dark spots and marks left after breakouts, start with No.5, ideally the 30 ml Vitamin Concentrated Serum; for dullness, rough texture and visible pores, start with No.3, either the Skin Softening Serum or the Super Glowing Essence Toner.
The rest of the range fills in around those two: No.1 is the calming number, No.4 is an exfoliating pore pad, No.6 is an overnight hydrator and No.7 is a soothing serum. No.9 is the firmness line, stocked here as the No.9 NAD+ PDRN Glow Boosting Toner, 150 ml at $15.99.
This is a researched guide built from current Numbuzin brand information and Sleepy Hello product pages, checked October 2026. We haven't worn or tested these products; texture descriptions are the brand's, and the buying advice comes from comparing formulas, directions, sizes and prices.
Is Numbuzin a good brand?
Yes, for a shopper who knows their main concern and wants an affordable product built around it. The Numbuzin products we stock run from $12.99 to $27.99 at Sleepy Hello, checked October 2026, and several labels print real percentages, which is less common than it should be. The No.3 Skin Softening Serum declares its two ferments at 42% and 21%, and the No.5 pad declares 50,000 ppm (5%) niacinamide.
Where it is ordinary: many formulas draw on the same short bench of ingredients (niacinamide, centella, heartleaf, licorice, neem and holy basil extracts), so owning three numbers can mean owning the same ingredients three times. Several formulas also include essential oils or fragrance components, which matters if your skin is easily irritated. And the before-and-after figures Numbuzin publishes rarely come with a participant count or method, so we don't use them to rank anything here.
Our take: buy one number for one concern, rather than a full set.
What do the Numbuzin numbers mean?
Each number is a concern line, and the same number can sit on a toner, a pad, a serum and a cleanser with unrelated formulas. So "No.3" tells you what a product is for, not what is in it. It isn't a percentage or a strength ranking either; No.5 is not stronger than No.3.
Numbuzin's Korean site sorts its range under four numbers: 1 for hydration and soothing, 3 for pores and texture, 5 for brightening and marks, and 9 for firmness and wrinkles. The other numbers appear on individual products rather than as site categories, so their purpose comes from the product names and descriptions:
No.3, glow, texture and pores: a fermented essence toner, essence pads and a softening serum.
No.4, pores and oil: the Pore Zero exfoliating toner pads.
No.5, dark spots and uneven tone: vitamin and niacinamide serums, pads and sheet masks.
No.6, overnight hydration: the Deep Sleep Mask Serum.
No.7, soothing: the Mild Green Soothing Serum.
No.9, firmness and wrinkles: the NAD+ PDRN Glow Boosting Toner, covered below.
The Numbuzin lineup at Sleepy Hello
No.1 Centella Re-Leaf Green Toner Pad
The No.1 Centella Re-Leaf Green Toner Pad holds 70 dual-sided pads in 190 ml of essence for $15.99. Numbuzin says the essence is 89% plant extracts, and the list opens with centella asiatica extract, licorice root extract and heartleaf (houttuynia cordata) extract, then glycerin and butylene glycol. The white bamboo side is for wiping and what the brand calls gentle exfoliation; the green side, made with ground centella leaves, is for pressing in or splitting into mini masks. There's no acid in the list, so that exfoliation comes from the pad's texture. One caution: the list ends with grapefruit peel, geranium, tea tree and rosemary leaf oils.
No.3 Super Glowing Essence Toner and Jumbo Essence Pad
The No.3 Super Glowing Essence Toner is 200 ml for $22.99, a slightly thick, yellow essence toner by the brand's description. After water come dipropylene glycol, glycereth-26, 1,2-hexanediol, niacinamide, butylene glycol and glycerin, then meadowsweet extract and a long run of ferments (the "50-ferment" in the marketing). Geranium flower oil, geraniol and citronellol appear near the end, so it isn't fragrance-free. Apply it by hand or cotton pad, or lay soaked pads on dry patches as a mini mask. At about 11.5 cents per ml, it costs less per ml than any of the serums here.
If you'd rather use pads, the No.3 Radiance Glowing Jumbo Essence Pad carries a similar ferment and niacinamide formula on 70 cotton pads (150 ml) for $14.99. Buy one or the other, not both.
No.3 Skin Softening Serum
The No.3 Skin Softening Serum, 50 ml for $13.99, is the least expensive serum here and the most unusual label. Bifida ferment lysate (42%) and galactomyces ferment filtrate (21%) lead the list; water doesn't appear until fifth, after butylene glycol and methyl gluceth-20. Niacinamide, glycerin and squalane follow, with sodium hyaluronate, panthenol and adenosine further down. The product page notes no parfum, essential oil or alcohol. It does include silk and goat milk extracts, so skip it if you avoid animal-derived ingredients. The product page describes a milky fluid that spreads thin, and the directions call for two or three drops after toner.
No.5+ Vitamin Concentrated Serum and No.5 Goodbye Blemish Serum
The No.5+ Glutathione Vitamin Concentrated Serum is 30 ml for $17.99; the brand says the bottle and box were refreshed and the formula is unchanged. Numbuzin states 5% niacinamide, 4% tranexamic acid, 5% panthenol, three forms of vitamin C, alpha-arbutin and glutathione. The list opens with lingonberry (vaccinium vitis-idaea) fruit extract, butylene glycol, niacinamide, panthenol and tranexamic acid, all before water. The brand describes a silky, slightly viscous texture and suggests it morning and evening, followed by moisturizer and, in the daytime, sunscreen.
The No.5 Goodbye Blemish Serum, 50 ml for $27.99, is a lightweight gel serum, per the product page, aimed at the same marks. Its list starts with sea buckthorn (hippophae rhamnoides) extract, the "Vitamin Tree" in the marketing, then butylene glycol, methyl gluceth-20, dipropylene glycol, glycerin, 1,2-hexanediol and niacinamide. Three vitamin C forms (ascorbyl glucoside, ascorbic acid and 3-O-ethyl ascorbic acid) sit further down with no stated percentages. The list also includes lemon and orange peel oils, lime oil, plus citral and limonene, so this No.5 carries citrus oils and fragrance components.
For a pad version, the No.5 Vitamin-Niacinamide Concentrated Pad puts 5% niacinamide with tranexamic acid, two vitamin C forms, gluconolactone (a PHA) and capryloyl salicylic acid (an LHA) on 70 pads in 180 ml, for $18.99.
No.4 Pore Zero Peeled Egg Toner Pad
The No.4 Pore Zero Peeled Egg Toner Pad, 70 pads for $23.99, was out of stock when we checked in October 2026. It's an acid pad: gluconolactone (PHA) and capryloyl salicylic acid (LHA), two mild exfoliants, with an embossed side for wiping and a smooth side for the leftover essence. Ethanol is third in the list, after water and methylpropanediol, which matters if alcohol stings your skin.
No.6 Deep Sleep Mask Serum and No.7 Mild Green Soothing Serum
The No.6 Deep Sleep Mask Serum, 50 ml for $18.99, opens with glacial water (63%), butylene glycol, propanediol, glycerin, niacinamide and 1,2-hexanediol, with several forms of hyaluronic acid further down that Numbuzin calls a five-layer complex. Use two or three pumps as the last step at night, or build several layers as a sleeping pack.
The No.7 Mild Green Soothing Serum, 50 ml for $17.99, leads with noni (morinda citrifolia) extract, then butylene glycol, propanediol, 1,2-hexanediol, glycerin, centella, heartleaf and mugwort, inside a botanical blend the brand counts at 29 ingredients. Ceramide NP and shea butter add moisture, and the brand describes a watery gel.
No.9 NAD+ PDRN Glow Boosting Toner
The No.9 NAD+ PDRN Glow Boosting Toner, 150 ml is $15.99, about 10.7 cents per ml, checked October 2026. Its product page describes an essence-like toner with 1,000 ppm salmon PDRN (short for polydeoxyribonucleotide), NAD+ and 50 peptides, aimed at dryness, dullness and a loss of firmness. Vitamin B12 gives it a soft violet color, so shake the bottle first, then apply with a cotton pad or your hands, morning or evening, before serum and moisturizer. The page shows no full ingredient list, so we can't check it for fragrance or alcohol.
No.1 Clear Filter Sun Essence
The No.1 Clear Filter Sun Essence, 50 ml for $12.99, is labeled SPF50+ PA++++ and uses chemical UV filters, including ethylhexyl triazone, terephthalylidene dicamphor sulfonic acid and bis-ethylhexyloxyphenol methoxyphenyl triazine. The first three ingredients are licorice root water (20.55%), centella extract (15%) and heartleaf extract (14.25%). Numbuzin calls it fragrance-free and says a foam cleanser is enough to remove it.
What is the difference between Numbuzin No.3 and No.5?
No.3 is for how skin feels and reflects light: rough texture, visible pores and dullness. No.5 is for color: dark spots, marks left after breakouts and uneven tone. The formulas follow that split. No.3 leans on ferments, niacinamide and humectants, while No.5 adds tone-focused ingredients such as tranexamic acid, alpha-arbutin, vitamin C forms and, in the Vitamin Concentrated Serum, glutathione.
On price, the No.3 Skin Softening Serum works out to about 28 cents per ml and the No.5+ Vitamin Concentrated Serum to about 60 cents per ml, checked October 2026. If you're not sure which you need, look at your skin in daylight: flat brown or pink marks point to No.5, while rough patches and visible pores without marks point to No.3.
Which Numbuzin product should I start with?
Start with one product matched to your main concern, and leave the rest of your routine as it is so you can judge it.
Dark spots or post-breakout marks: the No.5+ Vitamin Concentrated Serum, $17.99. It has the clearest stated percentages for this job. Wear daily sunscreen with it, since sun makes marks look more noticeable.
Rough texture, dullness or visible pores: the No.3 Skin Softening Serum, $13.99, or the No.3 toner if you'd rather swap your toner step.
Easily irritated skin: the No.1 Pure-Full Calming Herb Toner, $13.99 for 300 ml (fragrance-free, per its product page), the No.3 Skin Softening Serum or No.6, none of which lists essential oils. The No.1 pad is also a calming pick, but its list includes four essential oils.
Dehydrated, tight-feeling skin: the No.6 Deep Sleep Mask Serum, $18.99.
Dryness with a loss of firmness: the No.9 NAD+ PDRN Glow Boosting Toner, $15.99, in your toner step.
A daily sunscreen: the No.1 Clear Filter Sun Essence, $12.99.
What to skip
Skip doubling up inside one number at first. The No.5 serum and No.5 pad share niacinamide, tranexamic acid and vitamin C, and the No.3 toner and Jumbo Pad are close cousins. Skip the Goodbye Blemish Serum if you want a No.5 without listed essential oils, such as the No.5 pad, and skip the No.3 serum and the No.9 toner if you avoid animal-derived ingredients. If you want an acid pad while No.4 is out of stock, the in-stock No.5 Vitamin-Niacinamide Concentrated Pad also lists PHA and LHA.
The short list at Sleepy Hello, checked October 2026:
No.9 is Numbuzin's firmness and wrinkle line, according to its Korean site. The one we stock is the NAD+ PDRN Glow Boosting Toner, $15.99 for 150 ml, which its product page aims at dryness, dullness and a loss of firmness, using salmon PDRN, NAD+ and peptides. Its full ingredient list isn't shown.
Can you use Numbuzin No.3 and No.5 together?
Yes; neither product page says to avoid combining them. A simple order is the No.3 toner, then the No.5 serum, then moisturizer, with sunscreen last in the morning. If you pair two serums, apply the thinner No.3 Skin Softening Serum first. Both contain niacinamide, so add one product at a time over a couple of weeks.
Is Numbuzin good for sensitive skin?
Some of it. Numbuzin recommends most of these products for all skin types, but the No.1 pad, the No.3 toner and pad, and the Goodbye Blemish Serum include essential oils or fragrance components. Start with a list that has no essential oils, such as the No.1 Pure-Full Calming Herb Toner, the No.3 serum or No.6.
Do Numbuzin products contain alcohol?
A few do. Ethanol is third in the No.4 pad and last in the No.7 serum, and alcohol appears late in the No.5 pad. The No.3 Skin Softening Serum page states no alcohol.
Is every Numbuzin product vegan?
No. The No.1 pad carries vegan labeling and the brand says the No.5+ serum is made without animal-derived ingredients, but the No.3 Skin Softening Serum contains silk and goat milk extracts, and the No.9 toner's PDRN comes from salmon.
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Numbuzin Numbers Explained: Which No. to Start With | Sleepy Hello
