PepEvolutionGLOW
A cosmetic skin-quality blend combining GHK-Cu, KPV, and glutathione — component evidence is reasonable; no blend trial.
Verdict — C · Emerging / Mixed
Three clean compounds with complementary skin mechanisms — but no blend evidence and variable vendor quality. GHK-Cu and glutathione individually are well-supported for skin applications; buying them separately from COA-verified sources is a stronger approach than relying on a blend.
Overview
GLOW is a marketed cosmetic blend combining GHK-Cu (skin remodeling, gene regulation), KPV (NF-κB anti-inflammatory), and glutathione (antioxidant, skin brightening). Each component has its own evidence and safety profile; the blend has no fixed-formulation clinical trial. The combination is mechanistically coherent for skin quality goals, and all three components have clean safety profiles. Blend-level COA consistency varies across vendors.
PepScore Breakdown — the four axes
Evidence
35% weightHow strong is the published human science?
Sourcing & COA
30% weightOur moatCan a buyer obtain an independently-verified, high-purity version? — our proprietary layer.
Safety & Risk
25% weightWhat is the real-world harm potential?
Practicality
10% weightHow easy is it to actually run a verified version?
Sources & Citations
Every claim cites a primary source. Citations are machine-audited against NCBI — see methodology.
Educational only — not medical advice. PepScore is an educational research grade, not a prescription or dosing recommendation. Some vendor links are affiliate links — this never affects grades. Consult a licensed healthcare provider before using any compound.