Compare · Cosmetic peptide
Argireline vs GHK-Cu
Both are cosmetic peptide compounds. Here's how they line up on the evidence — graded the same way.
| Argireline | GHK-Cu | |
|---|---|---|
| Evidence | 5/10 | 5/10 |
| Class | Cosmetic peptide | Cosmetic peptide |
| Summary | Argireline is a topical cosmetic peptide marketed as "Botox in a bottle." Small human trials are mildly positive, but skin-penetration data undercut the core mechanism. | GHK-Cu is a copper-binding peptide with small, mostly cosmetic-industry skin trials, lots of lab data, and no large independent human RCTs. |
| Full profile → | Full profile → |
Argireline
Argireline is one of the most heavily marketed cosmetic peptides. It's sold as a needle-free "topical Botox" for expression lines. The idea behind it is clever, and it looks reasonably safe on the skin. But the human evidence that it actually works is thin: the studies are small, short, and often…
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.