AHK-Cu (Copper Tripeptide-3)

🔹 What is AHK-Cu (Copper Tripeptide-3)?

Class: Copper-binding tripeptide (Alanyl-L-histidyl-L-lysine complexed with copper) — a close structural cousin of GHK-Cu, already covered on this site. Mechanism:

• Like GHK-Cu, AHK-Cu chelates copper and uses that copper-binding capacity to influence cell signaling and tissue-remodeling activity — but the amino acid sequence is different (Ala-His-Lys instead of Gly-His-Lys), and that difference shifts its primary area of activity.
• Specifically studied for stimulating dermal papilla cells — the cells at the base of hair follicles that regulate the hair growth cycle and follicle activity.
• By supporting dermal papilla cell activity, AHK-Cu is theorized to help promote the follicle’s transition into and maintenance of the active growth (anagen) phase.

Primary focus:

• Hair growth and scalp support, with a narrower, more hair-specific focus than GHK-Cu’s broader skin, wound-healing, and anti-aging applications.
• See the site’s GHK-Cu entry for the more extensively studied, broader-spectrum relative of this compound.

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🔹 Oral Dosage: Not used; AHK-Cu is formulated and applied topically, not taken orally or systemically.

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🔹 Topical Dosage (only route in practical use) Range: Typically formulated at low percentage concentrations (commonly under 1%) in hair serums, scalp tonics, or leave-in treatments. Frequency: Once daily, most often applied directly to the scalp. Rationale: Topical application delivers the peptide directly to the follicle and dermal papilla environment without systemic exposure, consistent with how copper peptides are generally used for hair and skin applications. Notes: Best applied to a clean, dry scalp for absorption; often combined with other hair-support actives (biotin, minoxidil, other copper peptides) in commercial formulations.

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🔹 Cycle Length Common cycle length: Hair growth cycles are slow, so use is generally ongoing over several months (often 3–6 months) before meaningful visual change would be expected, consistent with how hair-growth-focused topicals are typically used. Off-cycle: No established washout period; use tends to be continuous rather than cycled.

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✅ Educational Integration Example (topical)

• Example protocol: A scalp serum containing AHK-Cu applied nightly to the scalp, used consistently over a period of months as part of a broader hair-support routine.
• Frequently formulated alongside or discussed in comparison to GHK-Cu, which addresses skin and broader tissue repair rather than hair-follicle-specific activity.

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🔹 Stacking Strategy (Educational / Complementary) Since AHK-Cu’s niche is hair-follicle support specifically, complementary approaches tend to focus on broader scalp and skin health: 🔸 Copper Peptide Family:

• GHK-Cu: Broader tissue repair, skin remodeling, and general anti-aging support that complements AHK-Cu’s more targeted follicle activity.

🔸 General Hair & Scalp Support:

• Biotin, topical minoxidil, other scalp-health actives: Address hair growth through different, non-overlapping mechanisms.

Rationale: AHK-Cu’s value is its specificity for the dermal papilla and hair cycle; stacking with GHK-Cu or other scalp-support actives broadens coverage without duplicating mechanisms.

Disclaimer: Do not rely on any dosing information provided, this is for educational and research only. Always double and triple check alternative references for education. Please consult with healthcare provider for your specific dosing and protocol if applicable.