Compare · Cosmetic peptide
GHK-Cu vs SNAP-8
Both are cosmetic peptide compounds. Here's how they line up on the evidence — graded the same way.
| GHK-Cu | SNAP-8 | |
|---|---|---|
| Evidence | 5/10 | 1/10 |
| Class | Cosmetic peptide | Cosmetic peptide |
| Summary | GHK-Cu is a copper-binding peptide with small, mostly cosmetic-industry skin trials, lots of lab data, and no large independent human RCTs. | SNAP-8 is a topical cosmetic peptide sold as a needle-free "Botox-like" wrinkle treatment. The wrinkle-reduction figures trace to manufacturer data, and skin-penetration problems undercut the core mechanism. |
| Full profile → | Full profile → |
GHK-Cu
GHK-Cu is one of the oldest and most-hyped "regenerative" peptides. You'll see it sold for skin aging, hair, and wound healing. The lab science behind it is genuinely interesting. But the human evidence is thinner — and less independent — than the marketing makes it sound.
SNAP-8
SNAP-8 is a skincare peptide sold as a needle-free, "Botox-like" treatment for expression wrinkles (the lines that show up when you smile, frown, or squint). The basic idea is the same one behind its better-known cousin Argireline, and on paper it makes sense. The catch is that the human results…