Onset
Not established; no human data exists.

Protocol / Research Dosing Guide
An evidence-organized AHK-Cu guide that separates the copper peptide's cell-based research from vendor claims, and keeps every human use question labeled honestly.
AHK-Cu is a copper-binding tripeptide (alanine-histidine-lysine complexed with copper), closely related to GHK-Cu. Published work is limited to cell-culture studies — mostly human dermal papilla and fibroblast experiments reporting effects on growth-factor signaling and collagen-related markers. No human trial, animal dosing study, or pharmacokinetic study of AHK-Cu was identified.
Why researchers care
Hair follicle and skin fibroblast research
Class
Copper tripeptide, Ala-His-Lys-Cu (GHK-Cu analogue)
Route reported
Research vials and cosmetic-formulation products are sold
Cycle length
Not established
Regulatory status
Not FDA approved; research-use and cosmetic-ingredient contexts only
No supplied coverage source establishes any human amount, schedule, or cycle for AHK-Cu. Vendor listings present a 50 mg research vial without a studied regimen. Every field below that lacks direct evidence is marked not established.
| Phase or study | Amount | Frequency / evidence |
|---|---|---|
| Human schedule | Not established | No human study exists |
| Cell-culture concentrations | Experimental ranges vary by study | Laboratory context only — not a body dose |
| Cycle or rest interval | Not established | No study defines one |
Cell-culture concentrations cannot be converted into human amounts. No validated schedule, cycle, or rest period exists for AHK-Cu.
Neutral research-material planning only. This does not establish an appropriate amount or route.
Research planning item
Exact labeled research vial
Research planning item
Measured diluent volume
Research planning item
U-100 measurement reference
Research planning item
Alcohol swabs
Research planning item
Appropriate sharps container
Research planning item
Written concentration label
Concentration
20 mg/mL
Draw volume
0.125 mL
U-100 units
12.5
Mathematical draws
20
Arithmetic only. The entered amount is not a recommendation and does not establish suitability.
Not established. No human-use study exists.
Not established.
Not applicable to a vial format and not established for any format.
No validated replacement or doubling procedure exists.
| Route | What is reported | Evidence limit |
|---|---|---|
| Subcutaneous vial | Research vials are marketed | No human safety or pharmacokinetic study |
| Topical or cosmetic | Copper peptides appear in cosmetic formulations | AHK-Cu-specific absorption is not established |
| Oral | Not established | No exposure data |
| Route conversion | None available | Formats are not interchangeable |
Routes and amounts are not interchangeable unless a verified study explicitly establishes a conversion.
| Measure | Finding | Evidence limit |
|---|---|---|
| Human half-life | Not established | No human PK study |
| Animal half-life | Not established | No animal PK study identified |
| Skin penetration | Not established for AHK-Cu | Related copper-peptide data does not substitute |
| Frequency | Not established | No studied regimen |
| Route | Amount | Frequency | Source | Human validation |
|---|---|---|---|---|
| Any human route | Not established | — | No human study | No |
| Cell culture | Study-specific concentrations | — | Laboratory research | No |
Published study values describe those studies. Community-reported values are not validated dosing recommendations.
Concentration: 20 mg/mL
| Entered amount | Volume | U-100 units |
|---|---|---|
| 2.5 mg | 0.125 mL | 12.5 units |
| 5 mg | 0.25 mL | 25 units |
| 7.5 mg | 0.375 mL | 37.5 units |
Reconstitution does not establish identity, purity, sterility, stability, or an appropriate amount.
AHK-Cu is an analogue of GHK-Cu, carrying copper into cell-culture systems.
Current status · verified September 16, 2026
Not FDA approved; research-use and cosmetic-ingredient contexts only
This is an evidence-gap and precaution list, not an approved prescribing label.
Pregnancy or breastfeeding
No safety data
Children or adolescents
No safety data
Known ingredient sensitivity
Identity and excipient uncertainty
Wilson disease or copper-metabolism disorders
Copper load is unstudied
Concurrent medicines
No interaction studies
Long-term or repeated use
No safety data
Important limitation: No controlled incidence data.
Important limitation: No human copper-balance study.
Important limitation: No characterized safety dataset.
Important limitation: No interaction studies.
Important limitation: No follow-up evidence.
Not established; no human data exists.
Not established.
Not established.
No validated monitoring schedule or stopping rule exists.
| Claim | Evidence level | What research shows | Important limitation |
|---|---|---|---|
| Hair growth support | Not established | Cell-culture dermal papilla research | No human study |
| Skin or collagen support | Not established | Cell-culture fibroblast research | No human study |
| Anti-aging claims | Not established | Marketing extrapolation | No controlled data |
No AHK-Cu-specific stability study was identified; follow the exact product label.
No validated AHK-Cu storage duration was identified.
Follow the product-specific label; no universal condition is established.
Cloudiness, discoloration, or particles do not establish safe usability.
Stop and seek qualified product guidance; appearance cannot confirm sterility.
Recheck vial quantity, diluent volume, target unit, and U-100 conversion.
No studied human amount exists; community figures are not validated.
No AHK-Cu safety protocol exists; seek licensed clinical review.
No validated missed-amount procedure exists.
| Compound | Class or mechanism | Evidence | FDA status |
|---|---|---|---|
| AHK-Cu | Ala-His-Lys copper tripeptide | Cell-culture studies only | Not approved |
| GHK-Cu | Gly-His-Lys copper tripeptide | Cell and cosmetic-formulation research | Not approved |
| Glow blend | GHK-Cu + BPC-157 + TB-500 vendor blend | No direct studies | Not approved |
A copper-binding tripeptide (Ala-His-Lys-Cu), an analogue of GHK-Cu, studied only in cell-culture research.
No published human trial was identified.
No published animal dosing study was identified.
No.
Not established — no human study exists.
Not established.
No. They are related copper peptides with different amino-acid sequences, and evidence does not transfer between them.
No.
It converts entered vial and liquid values into concentration and volume math only.
Vendor listing
Vendor listing confirming vial size and price; not evidence of effect.
Open direct sourceCell research index
Cell-culture study context for hair follicle signaling claims; not a human study.
Open direct source