AHK-Cu
What do these badges mean?
Evidence tier
- AHuman-validated — Human trials showing positive results and good safety.
- BAnimal-grade — No human trials yet, but solid animal/preclinical evidence of effect and safety.
- CAnecdotal — No human or animal trials — only anecdotal/observational reports.
- DInsufficient evidence — No or insufficient evidence (encyclopedia only — never recommended by the builder).
Safety light
- 🟢 Green — Only mild, manageable side effects; reasonable safety data.
- 🟡 Yellow — Needs active management, has a meaningful contraindication/interaction, or has thin long-term data.
- 🔴 Red — Risk of a hospital-level event — treat with serious caution.
Browse-only — not on the protocol builder's curated shortlist, so the builder won't recommend it.
What is it?
AHK-Cu is the copper peptide marketed for hair growth rather than facial skin, sitting in the copper-peptide family alongside GHK, GHK-Cu, Pal-GHK, and its own lipidated form, Pal-AHK.
What does it do in my body?
AHK-Cu is a copper-peptide complex that may stimulate hair-follicle activity and support keratinocyte proliferation.
How can it help me?
- Where the science stands: Anecdotal: 0 studies, 0 human trials
The full evidence — every human, animal, and lab study, graded — is one tap away: use the See the deeper science → toggle at the top.
Is it dangerous? What are the side effects?
No adverse-effect data specific to AHK-Cu was captured in the source profile. Family-wide read: topical delivery carries a benign safety record.
Regulatory status: Cosmetic-grade OTC topical/scalp ingredient — not an FDA-reviewed drug.
Typical dosing
Talk to your medical provider before starting any protocol. That said, here are the doses most people commonly use — shared for educational purposes so you can have an informed conversation. These peptides are sold for research use only and are not FDA-approved drugs, and this isn't medical advice.
Topical-only, typically formulated into scalp/hair serums. No specific concentration or use-frequency figure was captured in the source profile.
What should I avoid combining — and what's synergistic?
AHK-Cu doesn't have a dedicated stacking protocol in our notes — the interactions that matter most are in the safety section above. For how people combine it with other peptides, the deeper-science view has the full detail.
How can I buy this?
We don't have a verified affiliate source for AHK-Cu yet, so there's no coupon or vendor link here — we won't point you to a seller we haven't vetted. When buying any research-use-only peptide, the single biggest variable is the supply chain: insist on a vendor that publishes third-party Certificates of Analysis (COAs) confirming identity and >99% purity. Working with a peptide-literate clinician is one solid route — see our provider directory — or check back as our verified sources list grows.
The copper peptide marketed for hair growth rather than facial skin — mechanistically plausible as a copper peptide, but no published trial base for this specific molecule.
| Class | Copper/GHK-derivative family — topical cosmetic peptide (hair/scalp focus) |
| Mechanism (one line) | Copper-peptide complex that may stimulate hair-follicle activity and support keratinocyte proliferation |
| Evidence base | Anecdotal: 0 studies, 0 human trials |
| Safety record | Topical-only; benign safety record (Safety: green) |
| Regulatory status | Cosmetic-grade OTC skincare/scalp ingredient, not an FDA-reviewed drug |
What it is
AHK-Cu is the copper peptide marketed for hair growth rather than facial skin, sitting in the copper-peptide family alongside GHK, GHK-Cu, Pal-GHK, and its own lipidated form, Pal-AHK.
How it works
AHK-Cu is a copper-peptide complex that may stimulate hair-follicle activity and support keratinocyte proliferation.
What the research shows
Public profile grade: Anecdotal — 0 studies, 0 human trials. OHM’s internal 0035 categorization pass keeps AHK-Cu at Tier D / provisional (encyclopedia-only).
Status: popular in scalp/hair serums, mechanistically plausible as a copper peptide, but no published trial base for this specific molecule.
Real-world protocol
Topical-only, typically formulated into scalp/hair serums. No specific concentration or use-frequency figure was captured in the source profile.
Side effects & management
No adverse-effect data specific to AHK-Cu was captured in the source profile. Family-wide read: topical delivery carries a benign safety record.
Regulatory status
Cosmetic-grade OTC topical/scalp ingredient — not an FDA-reviewed drug.
Sources
- (thepeptidelist.com directory, captured 2026-06-07) — profile grade: Anecdotal, 0 studies, 0 human trials.
- OHM tier/safety grading: Tier D / provisional (encyclopedia-only).
- Migrated from
cosmetic-topical-peptides-cluster.md(2026-06-10 cluster build) as part of the cluster-to-standalone-article migration.
Sources & references
- (thepeptidelist.com directory, captured 2026-06-07) — profile grade: Anecdotal, 0 studies, 0 human trials.
- OHM tier/safety grading: Tier D / provisional (encyclopedia-only).
- Migrated from
cosmetic-topical-peptides-cluster.md(2026-06-10 cluster build) as part of the cluster-to-standalone-article migration.