ProtoClinical k-beauty Cos De BAHA G Glycolic Acid 10% AHA Serum 30ml dark serum bottle with matching box side by side on a white background
ProtoClinical k-beauty Cos De BAHA G Glycolic Acid 10% AHA Serum 30ml dark serum bottle with matching box side by side on a white background
ProtoClinical k-beauty Cos De BAHA G Glycolic Acid 10% AHA Serum 30ml single upright dark serum bottle centered on a white background
ProtoClinical k-beauty Cos De BAHA G Glycolic Acid 10% AHA Serum 30ml dark serum bottle with matching box side by side on a white background
Cos De BAHA

Cos De BAHA G Glycolic Acid 10% AHA Serum 30ml

$11.79
Refines rough texture Helps improve dullness Smooths the look of post-acne marks Supports a brighter surface Adds night-time renewal care
This multifunctional serum with 10% glycolic acid minimizes the appearance of scars, improves skin elasticity and provides hydration and moisture. The glycolic acid ingredient offers a peeling effect to exfoliate dead skin cells. This formula also provides anti-wrinkle and brightening care for healthy and radiant skin. The serum...
A night resurfacing serum for skin that wants clearer texture and more visible glow.
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10% Glycolic Acid AHA Resurfacing Serum Night Exfoliation Care
glycolic acid 10%
Cos De BAHA G Glycolic Acid 10% AHA Serum 30ml
Cos De BAHA G Glycolic Acid 10% AHA Serum 30ml Default Title
$11.79
Clinically proven actives Dermatologist tested 100% authentic Korean Cruelty-free
Pairs beautifully with

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$11.79

glycolic acid 10%

Glycolic acid has the smallest molecular size among AHAs, allowing it to penetrate the stratum corneum efficiently. It works by disrupting ionic bonds between corneocytes, accelerating the natural shedding process. In this serum, Glycolic Acid targets loss of firmness, delivering visibly brightens skin tone and fades uneven patches with consistent use.

Glycolic Acid 10%
dissolves the bonds between dead cells for faster turnover and brighter surface texture
The texture

Lightweight, absorbing serum

This multifunctional serum with 10% glycolic acid minimizes the appearance of scars, improves skin elasticity and provides hydration and moisture. The glycolic acid ingredient offers a peeling effect to exfoliate dead skin cells. This formula also provides anti-wrinkle and brightening care for healthy and radiant skin. The serum is free of parabens, gluten, formaldehyde, fragrance, sulfates and artificial colorants.

  • This G Glycolic Acid 10 AHA Serum with 10% Glycolic Acid helps to smooth scars and improve skin elasticity.
  • Delivers hydration and moisture to skin.
  • Offers excellent wrinkles reduction and brightens up skin tone to create healthy radiant skin.
  • A peel serum to exfoliate dead skin cells.
  • Free from 6 harmful ingredients such as Paraben, Gluten, Formaldehyde, Fragrance, Sulfate and Artificial Colorant.
All Skin Types rough texture dullness post-breakout marks uneven tone
Hover the swatch: it ripples like water

How to use

1

Use at night after cleansing and toner.

2

Apply a thin layer over the face, avoiding the eye area.

3

Start a few nights per week and build as tolerated.

4

Follow with moisturizer.

5

Wear sunscreen the next morning.

Full transparency

Ingredients

glycolic acid 10% support progressive resurfacing and smoother texture.

This product is best understood as a resurfacing step for experienced routines, which is why ingredients such as glycolic acid 10% need to be framed carefully. Exfoliating acids help loosen surface buildup so rough texture, dullness, and old-looking marks can look smoother and more even over time. The benefit is usually progressive rather than instant, and it works best when the product is introduced gradually and paired with good daytime sun protection. Supportive hydration in the formula helps the finish feel more balanced instead of unnecessarily harsh. The science story is controlled overnight renewal: refine the look of texture, brighten the surface, and do it in a way that still respects skin comfort. The texture and delivery format are part of why the formula makes practical sense in a daily routine, because products like this work best when they are comfortable enough to use consistently and easy to layer with moisturizer, sunscreen, or makeup as needed. That consistent, low-friction use is what makes the visible results more believable over time.

Free from

What you won't find in the bottle.

Paraben-Free
The detail

Specs & details

FormatLightweight serum
SizeDefault Title
Skin typesAll Skin Types
Country of originSouth Korea
Before you add to cart

Questions & answers

After cleansing and toning, before moisturizer. Serums deliver actives most effectively on freshly prepped skin.
Yes. Apply from thinnest to thickest consistency and allow each layer to absorb before the next.
Most users notice initial improvement within 2 to 4 weeks. For full benefits like visibly brightens skin tone and fades uneven patches, allow 6 to 8 weeks of consistent use.
Your skin begins adjusting. You may notice improved hydration and comfort before more visible changes like texture refinement become apparent.
Yes, this formula is developed to be compatible with all skin types dealing with loss of firmness. If you have very reactive skin, patch test on the inner arm before full application.
The formula is designed to be well-tolerated. For pregnancy-specific concerns, consult your healthcare provider. For sensitive skin, patch test before full application.
Glycolic Acid dissolves the bonds between dead cells for faster turnover and brighter surface texture. Consistent daily use is key to seeing the full benefits.
Check the INCI list for the most accurate information on fragrance components. The formula is developed for minimal irritation potential.
Store in a cool, dry place away from direct sunlight. Use within 12 months of opening for optimal freshness and efficacy.
Serums have a higher concentration of targeted actives than essences and a lighter consistency than most ampoules. They deliver the most potent treatment in your routine.
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About the brand

OriginSeoul, KR
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