Cosrx The 6 Peptide Skin Booster Serum
YOUR SKINCARE ROUTINE’S SECRET WEAPON
WHAT IT IS
This lightweight booster serum is designed to make everything else in your routine work better. Powered by a concentrated blend of 6 peptides, it deeply hydrates, smooths texture, improves elasticity, and helps support healthier, stronger skin over time — all without heaviness or irritation.
While this is called a 'serum,' we categorize it as an essence, as it is really the step that quietly upgrades your entire regimen.
WHY IT’S DIFFERENT
Most serums focus on one concern. This booster improves the overall condition of your skin and amplifies the effects of treatments it is combined with.
The formula combines 6 different peptides that target:
- elasticity + firmness
- fine lines
- texture
- pores
- hydration balance
What makes this product special is its texture and versatility. Unlike thick anti-aging serums that can feel heavy or overwhelming, this watery essence/booster absorbs instantly and layers beautifully under every product that follows — including retinal, vitamin C, and moisturizers.
It’s one of those rare products that works for almost everyone: delivering more glow, smoother texture, healthier-looking skin.
Skin Type: All skin types — including sensitive, oily, acne-prone, and mature skin
Texture: Light, watery serum — fast-absorbing, silky, non-sticky
PERFECT FOR
✔ Smoother, healthier-looking skin
✔ Fine lines + early signs of aging
✔ Enlarged pores + uneven texture
✔ Dehydrated or dull skin
✔ Strengthening the skin barrier over time
✔ Enhancing the performance of the rest of your skincare routine
This booster works best layered with targeted treatments like Retinal or retinol treatments, vitamin C, or hydrating serums.
NOT GOOD FOR
✘ Those expecting a single product to replace a full treatment routine. This serum has amazing benefits, but its superpower is in its ability to increase the impact of other treatment serums/moisturizers.
AM + PM — immediately after cleansing
Apply 2–3 pumps onto skin before toner, essence, or treatment serums. Can be used daily and pairs especially well with:
- retinal / retinol
- vitamin C
- hydrating routines
Follow with moisturizer to seal everything in.
Water, Dipropylene Glycol, Glycerin, Pentylene Glycol, 1,2-Hexanediol, Niacinamide, Acetyl Hexapeptide-8, Copper Tripeptide-1, sh-Polypeptide-121, Dipeptide Diaminobutyroyl Benzylamide Diacetate, Oligopeptide-68, Palmitoyl Tripeptide-8, Allantoin, Sodium Hyaluronate, Acetyl Glucosamine, Serine, Alanine, Glycine, Threonine, Arginine, Proline, Betaine, Sodium PCA, Sodium Lactate, PCA, Glutamic Acid, Lysine HCl, Tocopherol, Dextran, Glycine Soja (Soybean) Oil, Hydrogenated Lecithin, Ammonium Acryloyldimethyltaurate/VP Copolymer, Polyacrylate Crosspolymer-6, Butylene Glycol, Xanthan Gum, Ethylhexylglycerin, Adenosine, Polyquaternium-51, Disodium EDTA, Citric Acid, Caprylyl Glycol, t-Butyl Alcohol, Potassium Sorbate, Sodium Oleate
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