What does the serum feel like, and how quickly does it absorb?

It is a clear, watery serum that absorbs quickly.

When should I apply it in my routine, and how often?

Apply it after cleansing and toning in the evening, before moisturizer. The recommended frequency is two to three times per week.

How much should I use, and what should I do after applying it?

Apply a few drops to clean, dry skin while avoiding the eye area. Wait five minutes, follow with moisturizer and leave the serum on overnight. Cleanse in the morning and use sunscreen.

Which skin types is this serum for?

It is labeled for normal, dry, oily, combination and sensitive skin.

How much lactic acid does it contain, and how is it sourced?

The serum contains 12.5% lactic acid, described as produced during milk fermentation.

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CosDeBaha

LS Lactic Acid 12.5 Serum

What it is: A clear, watery serum with 12.5% lactic acid that exfoliates dull, dead skin cells to help rough or dull-looking skin feel smoother and appear more radiant.

12.5% lactic acid exfoliation
Smoother, more radiant look
Watery, quick-absorbing texture
Soothing hydration support

Net weight: 30 ml

LS Lactic Acid 12.5 Serum

30ml ·$8.09 USD

12.5% lactic acid exfoliation

Smoother, more radiant look

Watery, quick-absorbing texture

Soothing hydration support

Main active: No primary active
Intensity: Supportive

PRODUCT DETAILS

Hello, smoother-looking skin. This evening serum centers on 12.5% lactic acid that exfoliates dull, dead skin cells. It gives rough or dull-looking skin a focused path toward a softer feel and fresher-looking radiance.

Tone and texture get equal attention. The formula is designed to help uneven tone and texture look brighter and more even, making it a thoughtful choice when your complexion looks dull or feels rough.

On the skin, it has a clear, watery texture that absorbs quickly.

Aloe vera and green-tea extracts add soothing and hydrating support to the formula. Together, these details balance a clear exfoliating goal with a little extra care, while the product's all-skin-types label keeps the fit broad.

Learn more

GOES WELL WITH

100 Reedle Shot Stick Pouch$8.09 USD

1025 Dokdo Eye Cream$22.99 USD

1025 Dokdo Sleeping Pack$15.99 USD

1025 Dokdo Sun Cream$18.99 USD

1025 Dokdo Cream$24.99 USD

1025 Dokdo Pad$20.99 USD

1025 Dokdo Cleanser$11.99 USD

1025 Dokdo Lotion$14.99 USD

Focused lactic-acid exfoliation helps lift away dull surface cells while supporting smoother texture, a softer feel and more even-looking radiance.

Lifts away dull buildup
Smoother, softer feel
More even-looking tone
Soothing hydration support

Key Ingredients

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 Acid

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.

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.

Amber glass dropper bottle with a black bulb and gold collar centered on a white background.

Concerns & Benefits

Your Concerns

1
Dullness
For skin that looks dull when dead surface cells build up.
2
Uneven Texture
For rough-feeling texture that could use a smoother, softer finish.
3

How To Use

1In the evening, cleanse and tone your skin, then make sure it is dry.
2Apply a few drops, avoiding the eye area.
3Wait five minutes, then apply moisturizer and leave the serum on overnight.
4Cleanse your skin the next morning and use sunscreen.
5Use two to three evenings per week, and do not combine it with other AHA products or retinoids on the same night.

Frequently asked questions

What is this serum designed to do?

It exfoliates dull, dead skin cells and is designed to leave rough or dull-looking skin smoother, softer and more radiant. It also supports a brighter, more even-looking tone and texture.

Keep learning

Related guides

Ingredient guideGreen tea for skin →

Customer reviews

Frequently Bought Together

Buy these products together

This itemLS Lactic Acid 12.5 Serum$8.09 USD

100 Reedle Shot Stick Pouch$8.09 USD

1025 Dokdo Eye Cream$22.99 USD

Total price: $39.17 USD

This itemLS Lactic Acid 12.5 Serum$8.09 USD

100 Reedle Shot Stick Pouch$8.09 USD

1025 Dokdo Eye Cream$22.99 USD

Total price: $39.17 USD

VT COSMETICS

100 Reedle Shot Stick Pouch

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

2 mL × 10$8.09 USD

ROUND LAB

1025 Dokdo Eye Cream

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

30 ml / 1.01 fl oz$22.99 USD

ROUND LAB

1025 Dokdo Sleeping Pack

A lightweight, unscented overnight gel for hydration and smoother-feeling skin.

100 ml$15.99 USD

ROUND LAB

1025 Dokdo Sun Cream

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

50 ml$18.99 USD

ROUND LAB

1025 Dokdo Cream

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

80 ml$24.99 USD

ROUND LAB

1025 Dokdo Pad

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

70 pads / 120 g$20.99 USD

ROUND LAB

1025 Dokdo Cleanser

Creamy, slightly acidic foam for a comfortable cleanse

150 ml$11.99 USD

ROUND LAB

1025 Dokdo Lotion

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

200 ml$14.99 USD

CosDeBaha Lactic Acid 12.5 Exfoliating Serum | Sleepy Hello

CosDeBaha

LS Lactic Acid 12.5 Serum

What it is: A clear, watery serum with 12.5% lactic acid that exfoliates dull, dead skin cells to help rough or dull-looking skin feel smoother and appear more radiant.

12.5% lactic acid exfoliation
Smoother, more radiant look
Watery, quick-absorbing texture
Soothing hydration support

Net weight: 30 ml

LS Lactic Acid 12.5 Serum

30ml ·$8.09 USD

12.5% lactic acid exfoliation

Smoother, more radiant look

Watery, quick-absorbing texture

Soothing hydration support

Main active: No primary active
Intensity: Supportive

PRODUCT DETAILS

On the skin, it has a clear, watery texture that absorbs quickly.

Learn more

GOES WELL WITH

100 Reedle Shot Stick Pouch$8.09 USD

1025 Dokdo Eye Cream$22.99 USD

1025 Dokdo Sleeping Pack$15.99 USD

1025 Dokdo Sun Cream$18.99 USD

1025 Dokdo Cream$24.99 USD

1025 Dokdo Pad$20.99 USD

1025 Dokdo Cleanser$11.99 USD

1025 Dokdo Lotion$14.99 USD

Focused lactic-acid exfoliation helps lift away dull surface cells while supporting smoother texture, a softer feel and more even-looking radiance.

Lifts away dull buildup
Smoother, softer feel
More even-looking tone
Soothing hydration support