GHK-Cu vs. Snap-8
Head-to-head comparison based on the profiles in the PepCycle library.
| Attribute | GHK-Cu | Snap-8 |
|---|---|---|
| Class | Skin & Cosmetic Peptides | Skin & Cosmetic Peptides |
| Description | A naturally occurring copper peptide found in human plasma. Extensively researched for skin regeneration and anti-aging properties. | Synthetic octapeptide and longer analog of Argireline, used in cosmetics as a topical "Botox-like" ingredient against expression lines. |
| Dose in studies | 1-2 mg per injection/usage | Topical: concentration per cosmetic product |
| Frequency | 1 x daily (injectable) or 2x daily (topical) | Topical 1–2× daily in cosmetic use |
| Half-life | ~1-2 hours | Not established (topical use) |
| Cycle length | 4-12 Weeks, Continuous use acceptable for topical | Continuous; effects assessed after 4–12 weeks |
| Research level | 2/5 – Limited research | 1/5 – Very limited research |
GHK-Cu: full profile · Snap-8: full profile
Values from research literature – not medical advice.