GHK-Cu vs Humanin
Research Verdict
Neither compound has a universal evidence advantage. Both peptides serve distinct research goals with comparable evidence; choose by target mechanism.
Quick Answers
Which is better, GHK-Cu or Humanin?
Neither compound has a universal evidence advantage. Both peptides serve distinct research goals with comparable evidence; choose by target mechanism.
What is the key difference between GHK-Cu and Humanin?
GHK-Cu targets extracellular matrix remodeling and copper delivery for tissue repair; humanin targets mitochondrial stress response and BAX-mediated apoptosis - non-overlapping mechanisms serving different research questions.
Evidence Comparison
GHK-Cu: small human RCTs for skin applications, commercially available topical formulations, independent multi-group validation. Humanin: strong independent mechanistic characterization (Hashimoto 2001, Muzumdar 2009) but animal-only efficacy studies. GHK-Cu has the human efficacy advantage; humanin has the stronger mechanistic foundation.
Evidence Context Favoring GHK-Cu
Skin and tissue repair research where human efficacy data and topical delivery are relevant.
Evidence Context Favoring Humanin
Mitochondrial neuroprotection, apoptosis, or metabolic stress research at the basic science level.
Side-by-Side Snapshot
| Evidence grade | GHK-Cu: Level B Humanin: Level D |
|---|---|
| Research status | GHK-Cu: Phase 2 Humanin: Preclinical |
| Primary category | GHK-Cu: Skin & Beauty Humanin: Anti-Aging & Longevity |
| Cited studies | GHK-Cu: 6 Humanin: 3 |