AHK 200mg (Tripeptide-3) is the copper-free Ala-His-Lys peptide powder from Peptide Sciences, used in cosmetic formulation research.
AHK Research Overview
Copper-free AHK allows formulators to test the peptide alone or add copper in controlled amounts. It is used as a baseline when studying the effect of copper complexation in AHK-Cu.
AHK 200mg Specifications
| Property | Value |
|---|---|
| Compound | AHK (Tripeptide-3, sequence Ala-His-Lys) |
| Class | Synthetic copper-affinity tripeptide; GHK-class analog |
| Amino-acid count | 3 |
| Molecular weight | approximately 354.4 g/mol |
| Source-protein basis | Alanine-substituted analog of human plasma GHK tripeptide |
| Supplied form | Topical research formulation |
| Strength | 200 mg per supply |
| Purity | greater than 99 percent (HPLC verified) |
| Storage | 2 to 8 degrees Celsius; protect from light |
Using the 200mg Powder
Suitable for formulation and comparison studies.
Research Considerations
Using copper-free AHK alongside AHK-Cu gives formulators a clean way to determine whether a given effect requires copper, which also guides decisions on product colour and stability.
Quality Control, COA and Shipping
Consistency between lots is checked by HPLC and mass spectrometry, so researchers can compare results across experiments with confidence. Each order ships with a lot-specific Certificate of Analysis and cold-chain packaging.
Related Research Compounds
Researchers working with AHK tripeptide-3 often compare results with these catalog compounds:
- AHK-Cu (Copper Tripeptide) 200mg (Topical)
- Pal-AHK 200mg (Topical)
- GHK Basic 200mg (Tripeptide-1) (Topical)
- SNAP-8 200mg (Topical)
Explore the full Cosmetic Peptides collection, browse the complete Peptide Sciences research peptide catalog, or review published literature on AHK tripeptide-3 in PubMed.
Research use only. This product is sold strictly for in-vitro laboratory research and development by qualified professionals. It is not for human or veterinary use, not a drug, food or cosmetic, and has not been evaluated by the FDA to diagnose, treat, cure or prevent any disease. Buyers must be 21+ and comply with all applicable laws.





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