COSRX The 6 Peptide Skin Booster Serum with Niacinamide & Hyaluronic Acid
by COSRX · skin_care
Editor's Take
Among peptide boosters, this one earns its shelf space: a serious six-peptide blend with modern delivery, though strict clean-beauty shoppers will dislike the polymer-heavy base.
Four-pillar formula scores
- Efficacy: 8.8 / 10
- Modern Tech: 8.5 / 10
- Clean Beauty: 6.3 / 10
- Sustainability: 6.0 / 10
The Verdict
Efficacy is Excellent, with Argireline®, Copper Tripeptide-1, Niacinamide, and sh-Polypeptide-121 covering smoothing, tone, and firming from several angles. Technology is Highly Advanced, and the water-break gel makes sense for a first-step booster under moisturizer or sunscreen. Clean is Fair, while sustainability is Good, reflecting the trade-off between sophisticated delivery and a synthetic-polymer-heavy base. A credible daily peptide booster that punches above its category.
Full INCI list
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.