How should I apply the serum?

At night, after cleansing and toning, apply a moderate amount and gently tap it into your skin to help it absorb.

How often should I use it?

Use it at night once or twice a week.

What should I know if sensitivity is a concern?

The formula pairs tone and texture care with hydrating and calming support. Test a small amount on your neck or beneath your chin before broader use.

Is the formula fragrance-free?

Yes. It is listed as free from fragrance, essential oils and alcohol.

Which key ingredients are in the formula?

The declaration includes retinol, tranexamic acid, bakuchiol and arbutin. It also includes aloe, panthenol, sodium hyaluronate, squalane, madecassoside and Ceramide NP.

Free standard shipping to eligible countries from €71

CosDeBaha

RT Retinol Tranexamic Serum

What it is: A concentrated facial serum that pairs retinol and tranexamic acid to improve the look of uneven tone, dark spots, fine lines and overall texture.

More even-looking tone
Smoother-looking fine lines
Hydration + a soft feel
Moisture barrier support

Net weight: 30 ml

RT Retinol Tranexamic Serum

30ml ·€18.88

More even-looking tone

Smoother-looking fine lines

Hydration + a soft feel

Moisture barrier support

Main active: Retinol
Intensity: Standard

PRODUCT DETAILS

If dark spots, uneven tone, fine lines and rough-looking texture share your wish list, this concentrated facial serum brings retinol and tranexamic acid into one focused step. Retinol helps smooth the look of fine lines, while tranexamic acid helps make visible dark spots less noticeable. Together, they support a more radiant, even-looking tone and refined texture.

Bakuchiol rounds out the core trio with additional tone and smoothing support. The combination is designed to encourage smoother-looking fine lines and texture without leaving hydration out of the conversation.

Aloe and hyaluronic acid offer hydration with a soft, supple feel. Panthenol adds calming support, while Ceramide NP supports the moisture barrier. The formula is also fragrance-, essential-oil- and alcohol-free, as well as free from sulfates and parabens.

Learn more

GOES WELL WITH

1025 Dokdo Cream€23.00

1025 Dokdo Eye Cream€20.88

1025 Dokdo Lotion€13.98

1025 Dokdo Sun Cream€17.98

Alpha-5 Mela Care Cream€13.99

100 Reedle Shot Stick Pouch€7.88

1025 Dokdo Cleanser€10.99

1025 Dokdo Pad€18.99

A focused blend for visible tone, texture and fine-line care, balanced with hydration and moisture-barrier support.

More even-looking tone
Smoother-looking texture
Hydration with a soft feel
Moisture barrier support

Key Ingredients

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

Retinol

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

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

Tranexamic Acid

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

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

Bakuchiol

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.

Clear hydrogel spheres and droplets on a pale lilac background.

Hyaluronic Acid

Helps hydrate and visibly plump the skin.

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

Ceramides

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

Panthenol

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

A cut section of green aloe leaf with translucent gel and water droplets, resting on a pale sage surface against a warm ivory backdrop.

Aloe Vera

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

Dark glass serum bottle with a tall black cap and teal-gray label on white.

Concerns & Benefits

Your Concerns

1
Dark Spots Hyperpigmentation
You want dark spots to look less noticeable and your overall tone to look more even.
2
Fine Lines Wrinkles
Fine lines and uneven texture are keeping your skin from looking as smooth as you would like.

How To Use

1Before broader use, test a small amount on your neck or beneath your chin.
2Once or twice a week at night, cleanse and tone, then apply a moderate amount of serum.
3Gently tap it into your skin to help it absorb, then leave it on as your serum step.

Dark glass serum bottle with a tall black cap and teal-gray label centered on a white background.

Frequently asked questions

What skin concerns does this serum address?

It focuses on visible dark spots and uneven tone, fine lines and texture, with hydration and moisture-barrier support alongside those appearance goals.

Keep learning

Customer reviews

Frequently Bought Together

Buy these products together

This itemRT Retinol Tranexamic Serum€18.88

1025 Dokdo Cream€23.00

1025 Dokdo Eye Cream€20.88

Total price: €62.76

This itemRT Retinol Tranexamic Serum€18.88

1025 Dokdo Cream€23.00

1025 Dokdo Eye Cream€20.88

Total price: €62.76

ROUND LAB

1025 Dokdo Cream

A rich, unscented balm moisturizer for lasting hydration and a soft, cushioned feel.

80 ml€23.00

ROUND LAB

1025 Dokdo Eye Cream

Lightweight daily eye care for hydration, brightness and smoother-looking fine lines.

30 ml / 1.01 fl oz€20.88

ROUND LAB

1025 Dokdo Lotion

A lightweight, unscented facial moisturizer with three forms of hyaluronic acid for lasting moisture without stickiness.

200 ml€13.98

ROUND LAB

1025 Dokdo Sun Cream

SPF 50+ PA++++ protection in a lightweight, no-white-cast lotion.

50 ml€17.98

TIAM

Alpha-5 Mela Care Cream

Focused care for brighter, more even-looking skin

40 ml€13.99

VT COSMETICS

100 Reedle Shot Stick Pouch

A travel-size evening booster for smoother-feeling, more refined-looking skin.

2 mL × 10€7.88

ROUND LAB

1025 Dokdo Cleanser

Creamy, slightly acidic foam for a comfortable cleanse

150 ml€10.99

ROUND LAB

1025 Dokdo Pad

Two-sided toner care for tidier texture and balanced moisture.

70 pads / 120 g€18.99

CosDeBaha Retinol Tranexamic Serum – 30 ml | Sleepy Hello

CosDeBaha

RT Retinol Tranexamic Serum

What it is: A concentrated facial serum that pairs retinol and tranexamic acid to improve the look of uneven tone, dark spots, fine lines and overall texture.

More even-looking tone
Smoother-looking fine lines
Hydration + a soft feel
Moisture barrier support

Net weight: 30 ml

RT Retinol Tranexamic Serum

30ml ·€18.88

More even-looking tone

Smoother-looking fine lines

Hydration + a soft feel

Moisture barrier support

Main active: Retinol
Intensity: Standard

PRODUCT DETAILS

Learn more

GOES WELL WITH

1025 Dokdo Cream€23.00

1025 Dokdo Eye Cream€20.88

1025 Dokdo Lotion€13.98

1025 Dokdo Sun Cream€17.98

Alpha-5 Mela Care Cream€13.99

100 Reedle Shot Stick Pouch€7.88

1025 Dokdo Cleanser€10.99

1025 Dokdo Pad€18.99

A focused blend for visible tone, texture and fine-line care, balanced with hydration and moisture-barrier support.

More even-looking tone
Smoother-looking texture
Hydration with a soft feel
Moisture barrier support