The compounds people research for skin, collagen, and pigmentation.
Users report visible skin improvement with GHK-Cu. This track shows what the evidence supports, and flags where the data belongs to an ingredient, not a branded blend.
Skin quality, collagen, wound repair, pigmentation, cosmetic peptides, aesthetic recovery.
Aesthetic peptides are marketed visually, but the question is still evidence. This track grades by mechanism, evidence strength, and whether the data belongs to the ingredient or the branded blend.
Note
GLOW and KLOW are graded on their individual components because no blend-specific human trials exist.
| Compound | Tier | What people research it for | What the evidence shows |
|---|---|---|---|
| GHK-Cu | B+ | Users report skin remodeling and collagen support. | Solid mechanistic and topical human data. |
| GLOW | B | Skin blend research. | Graded on components. No blend-specific human trials. |
| KLOW | B | Skin blend research. | Graded on components. No blend-specific human trials. |
| Melanotan I | B+ | MC1R activation and photoprotection research. | Mechanistic and some human data. |
| Melanotan II | B | Pigmentation research. | Mechanistic. Safety concerns. |
GHK-Cu
Mechanism
Copper tripeptide in skin remodeling.
Evidence
Tier B+.
Risk
Research-use-only. Route-dependent.
Standing
Not an approved drug. Used cosmetically.
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