++++
[ DemythSkin Verdict ]

COSRX The 6 Peptide Skin Booster Serum
SerumAnti-Aging
Efficacy
Solid
3.8 / 5.0
Safety
Safe
4.6 / 5.0
System Verdict
Loaded concept, realistically a gentle hydrating peptide mist-serum with modest anti-aging power rather than a true collagen-rebuilding powerhouse. Efficacy lands in the solid-but-not-transformative range because niacinamide sits respectably high in the list, but all six peptides plus adenosine and acetyl glucosamine are likely in low single-digit or sub‑1% territory (mid-to-late INCI) in a very watery, booster-style base, so you get incremental firming/soothing/brightening benefits layered over good hydration rather than clinic-level wrinkle reduction.
Active Ingredients Detected
A Tier: Good BasicsProven Results
WaterGlycerinNiacinamideAllantoinSodium HyaluronateAcetyl GlucosamineSerineAlanineGlycineThreonineArginineProlineBetaineSodium PCASodium LactateLysine HClTocopherolGlycine Soja (Soybean) OilHydrogenated LecithinAdenosine
B Tier: Supporting IngredientsPromising Ingredients
Dipropylene GlycolPentylene Glycol1,2-HexanediolAcetyl Hexapeptide-8Copper Tripeptide-1sh-Polypeptide-121Dipeptide Diaminobutyroyl Benzylamide DiacetateOligopeptide-68Palmitoyl Tripeptide-8PCAGlutamic AcidDextranAmmonium Acryloyldimethyltaurate/VP CopolymerPolyacrylate Crosspolymer-6Butylene GlycolXanthan GumPolyquaternium-51Disodium EDTACitric AcidCaprylyl GlycolPotassium SorbateSodium Oleate
D Tier: Potential IrritantsBe Cautious
Ethylhexylglycerint-Butyl Alcohol
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DemythSkin is an independent ingredient analyzer. Scores are computed by a deterministic rubric from published clinical evidence — no brand pays for a score.