Peptides · Nootropics · Kratom
Read the lab report, not the label.
Peptides, kratom and nootropics, written up from certificates of analysis and published studies. Where the evidence is thin, we say so.
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Copper peptides
Current write-up
Two copper peptides, one atom apart.
GHK-Cu flips dormant follicles back into growth phase. AHK-Cu keeps them there, shielding the new cycle from DHT-driven shortening. On paper they look like different compounds.
They are not. Both are histidine-lysine tripeptides carrying a copper ion, and the entire structural difference sits at one position on the first residue: a hydrogen in GHK, a methyl group in AHK. The drawing shows it.
- Copper ratio
- 1:1
- Stated purity
- 99% HPLC
- Key study
- Seoul Nat. Univ. 2007
- Evidence tier
- Human, limited
- Drawing
- 07-B
- Scale
- Not to scale
- Sheet
- 1 of 1
General notes
How this site works
The certificate of analysis comes first
No compound is recommended here without a batch-specific COA we can actually read. If the lab report does not exist, neither does the write-up.
Evidence tiers, stated plainly
Human trial data, animal data and anecdote are labelled as what they are. Several compounds covered here are rodent-only, because that is what the literature says.
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Anyone can write a review. Far fewer will show you the chromatogram.The editor
Educational content only, not medical advice. Compounds referenced are research chemicals and are not approved by the FDA for human or animal consumption. Structures shown are simplified representations for illustration. Always verify the batch report yourself before buying anything.