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SKIN & REGENERATIONAHK

AHK-Cu

A copper-binding tripeptide studied for its role in follicular signalling, vascular support, and regenerative dermal pathways — often compared alongside GHK-Cu.

Half-Life
Short–Moderate
Onset
Gradual
Symbol
AHK
Category
Skin

⏱ Half-Life

Short–Moderate duration profile

AHK-Cu demonstrates a short–moderate half-life characteristic in research literature, shaping how observation windows and study timelines are typically structured.

⚡ Onset Characteristics

Gradual measurable response

Onset is observed as gradual — a property that influences how researchers structure comparative studies versus other compounds in the skin & regeneration category.

🧠 Key Notes

What makes it distinct

  • 01Frequently studied alongside GHK-Cu for comparative copper-peptide profiles
  • 02Investigated in follicular and dermal research models
  • 03Binds copper to form an active complex

🧬 Mechanism of Action

How it works

AHK-Cu is a tripeptide (alanyl-L-histidyl-L-lysine) that, like GHK-Cu, forms an active complex when bound to copper(II). While structurally similar to GHK-Cu, its biological signature differs: AHK-Cu shows particularly strong affinity for hair-follicle signalling pathways, supporting dermal papilla cell proliferation and VEGF-mediated perifollicular angiogenesis. The copper ion serves as a cofactor for enzymes involved in collagen cross-linking and antioxidant defence. AHK-Cu is often paired with GHK-Cu in topical research formulations because the two peptides modulate overlapping but distinct gene-expression panels, broadening the regenerative signalling spectrum.

✨ Documented Benefits

What the research shows it supports

B01Stimulates hair-follicle activity and supports dermal papilla cell proliferation in research models.
B02Promotes perifollicular vascularisation through VEGF signalling, supporting hair-cycle health.
B03Supports collagen synthesis and dermal repair, complementary to GHK-Cu.
B04Antioxidant activity through bound copper and supporting enzyme cofactor roles.
B05Synergistic effects when combined with GHK-Cu in topical regenerative formulations.

🔍 Research Insights

What the literature shows

INSIGHT 01

Shows stronger affinity for hair-follicle signalling pathways than GHK-Cu in comparative dermal research.

INSIGHT 02

Binds copper with high specificity, but downstream gene expression profile differs meaningfully from GHK-Cu.

INSIGHT 03

Often combined with GHK-Cu in topical research formulations to broaden the signalling spectrum.

🧪 Typical Research Use Cases

Where it appears in study design

USE CASE 01

Follicular and hair-cycle research models.

USE CASE 02

Topical regenerative formulation studies.

USE CASE 03

Comparative copper-peptide profiling vs GHK-Cu.

📚 References

Peer-reviewed literature

Primary research sources cited on this profile. All links resolve to PubMed or the publishing journal.

  1. [01]

    Pyo, H. K. et al. (2007). The effect of tripeptide-copper complex on human hair growth in vitro. Archives of Pharmacal Research, 30(7), 834–839.

    Archives of Pharmacal Research ↗
  2. [02]

    Trüeb, R. M. (2018). Discovering the Secrets behind a Modern Hair Cosmeceutical: A Critical Review of Studies on the AHK-Cu Peptide. International Journal of Trichology, 10(3), 105–111.

    International Journal of Trichology ↗
  3. [03]

    Pickart, L., & Margolina, A. (2018). Regenerative and Protective Actions of the GHK-Cu Peptide in the Light of the New Gene Data. International Journal of Molecular Sciences, 19(7), 1987.

    International Journal of Molecular Sciences ↗
  4. [04]

    Hostynek, J. J., Dreher, F., & Maibach, H. I. (2010). Human skin penetration of a copper tripeptide in vitro as a function of skin layer. Inflammation Research, 60(1), 79–86.

    Inflammation Research ↗

Continue Exploring

Also explore: GHK-Cu, BPC-157, TB-500

GHK-Cu →BPC-157 →TB-500 →Half-Life Guide →Skin & Regeneration →