COSRX The 6 Peptide Skin Booster Serum with Niacinamide & Hyaluronic Acid
by COSRX · skin_care
Editor's Take
Six peptides doing real work , Argireline for expression lines, Copper Tripeptide-1 for remodeling, a biotech collagen-mimetic , backed by Niacinamide and a full amino acid blend.
Four-pillar formula scores
- Efficacy: 8.8 / 10
- Modern Tech: 8.5 / 10
- Clean Beauty: 6.3 / 10
- Sustainability: 6.0 / 10
The Verdict
This is a genuinely advanced peptide serum that earns its 'booster' label. The six-peptide formula targets multiple pathways , expression lines, remodeling, brightening , and the formula pairs them with Niacinamide, Adenosine, and a full amino acid blend that mimics Natural Moisturizing Factors. The technology score is Highly Advanced (8.5), driven by biotech peptides and modern polymeric delivery systems that keep the actives stable and skin-compatible. Efficacy is Excellent (8.8), punching well above its weight for a first-step serum. The clean score sits at Good (6.3) due to synthetic polymers in the base , Polyquaternium-51, acrylate copolymers, petrochemical glycols , which also pull sustainability to Good (6.0). Worth it if you want a peptide serum that actually loads the actives at the top of the list, not buried under silicones.
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.