Skip to product information

The 6 Peptide Skin Booster Serum

The 6 Peptide Skin Booster Serum

Regular price $25.90
Regular price $25.90 Sale price $51.80
Sold out

check_circle Real results, gentle care

check_circle 100% authentic COSRX formulas

check_circle 30-day satisfaction guarantee

 
 
VERIFIED
rating star 4.9 out of 5
Excellent
Based on 2,636 reviews

Description

6 potent peptide that enhances overall skin condition as your first step serum

The 6 peptide skin booster contains 6 multi peptides that boost overall skin condition such as pore & sebum, firmness, fine lines, skin texture, skin tone and soothing. It is perfect to use as the first step of skincare routine to prep and boost.

 

Size: 150mL (5.07 fl.oz)

How to use

  1. Use after cleansing as a toner before ampoule, serum or moisturizer.
  2. Dispense a few drops and pat gently over the face.
  3. Follow with serum and moisturizer.

30-Day Satisfaction Guarantee

We stand behind our formulas with confidence. Try COSRX for 30 days, completely risk-free. If you’re not fully satisfied, simply reach out to our support team — we’ll make it right, because your skin’s trust matters most.

Real Results, Backed by Millions of Users

Our products aren’t just trending — they’re trusted. With over one million happy customers worldwide and countless before-and-after stories, COSRX is known for delivering smoother, clearer, and more balanced skin you can see and feel.

Ingredients

Water, Dipropylene Glycol, Glycerin, Pentylene Glycol, 1,2-Hexanediol, Niacinamide, Ammonium Acryloyldimethyltaurate/VP Copolymer, Polyacrylate Crosspolymer-6, Butylene Glycol, Xanthan Gum, Ethylhexylglycerin, Adenosine, Polyquaternium-51, Disodium EDTA, Citric Acid, Caprylyl Glycol, Betaine, t-Butyl Alcohol, Sodium PCA, Sodium Lactate, Acetyl Hexapeptide-8, Copper Tripeptide-1, PCA, sh-Polypeptide-121, Serine, Alanine, Allantoin, Sodium Hyaluronate, Acetyl Glucosamine, Glycine, Glutamic Acid, Lysine HCl, Threonine, Dipeptide Diaminobutyroyl Benzylamide Diacetate, Arginine, Tocopherol, Oligopeptide-68, Proline, Dextran, Palmitoyl Tripeptide-8, Glycine Soja (Soybean) Oil, Hydrogenated Lecithin, Potassium Sorbate, Sodium Oleate

View full details

Smoothness.

Firmness.

Deep hydration.

Glow.

Radiance.

Smoothness.

Firmness.

Deep hydration.

Glow.

Radiance.

Smoothness.

Firmness.

Deep hydration.

Glow.

Radiance.

Smoothness.

Firmness.

Deep hydration.

Glow.

Radiance.

Smoothness.

Firmness.

Deep hydration.

Glow.

Radiance.

Smoothness.

Firmness.

Deep hydration.

Glow.

Radiance.

Smoothness.

Firmness.

Deep hydration.

Glow.

Radiance.

Smoothness.

Firmness.

Deep hydration.

Glow.

Radiance.

WHO IS IT FOR?

Perfect for anyone who wants one product to do it all, this serum targets firmness, pores, fine lines, dullness, hydration, radiance and uneven tone in a single step.

Formulated through non-comedogenic and primary irritation tests, it’s gentle enough for sensitive, acne-prone, or reactive skin types.

Designed for people looking to prevent early signs of aging while keeping the skin smooth, hydrated, and radiant.

Designed for easy layering, enhancing the affects of subsequent serums and ampoules when used before them.

    FAQ

    Do you need help with your order or have a question about one of our products?Contact our support team at contact@the-cosrx.store.

    Collapsible content

    Are COSRX products authentic?

    Absolutely. COSRX is the official source of all our products — formulated, produced, and distributed directly by our team. We never work with unauthorized resellers, so you can shop confidently knowing every product is 100% genuine.

    Are COSRX products suitable for sensitive skin?

    Yes! Our formulas are dermatologist-tested and made with gentle, skin-loving ingredients that prioritize your skin’s health barrier. COSRX was created for all skin types — even the most sensitive.

    Are your products cruelty-free?

    Always. COSRX is proudly cruelty-free and does not test on animals at any stage of product development.

    What if a product doesn’t work for me?

    No worries — every purchase comes with our 30-Day Confidence Guarantee. If you’re not satisfied, simply contact us within 30 days, and our team will make it right.

    Can I combine different COSRX lines in my routine?

    Yes! Our products are designed to work synergistically. Whether you mix Snail Mucin with Peptide, or AHA/BHA with Hydrium, each line complements the other to target multiple skin concerns effectively.

    loading