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Skin & CosmeticEmerging research#14 in SkinSubcutaneous · Into fat, under the skin

AHK-Cu

AHK-Cu, or Alanyl-Histidyl-Lysine copper tripeptide, is a copper-binding peptide related to the more widely studied GHK-Cu, distinguished by its amino acid sequence and research focus that includes hair follicle biology alongside general skin support. It has drawn research interest for its proposed effects on vascular endothelial growth factor (VEGF) expression and dermal papilla cell activity, both implicated in hair growth cycles. This profile addresses AHK-Cu in the context of reconstituted, subcutaneous protocols, which is less studied overall than topical application. Human clinical data specific to this exact peptide remains limited compared to its better-known counterpart GHK-Cu.

Reported benefits

  • Studied for potential effects on VEGF expression relevant to hair follicle blood supply
  • Investigated for possible influence on dermal papilla cell activity linked to hair growth cycles
  • Explored alongside other copper peptides for general tissue-support properties
  • May be of interest in scalp and hair-focused research contexts

How it works

AHK-Cu is proposed to stimulate VEGF expression, a growth factor associated with blood vessel formation that supports nutrient delivery to hair follicles, and to influence dermal papilla cell activity, a cell population central to regulating hair follicle growth cycles. Its copper-binding structure is also associated with general antioxidant and tissue-signaling properties similar to other copper peptides.

Dosing ranges

TierDoseFrequency
Low1 mgonce daily or every other day
Moderate2 mgonce daily
High3 mgonce daily, at the higher end of ranges discussed in research and community protocols

Estimate your dose

Dose estimator

Educational estimate for AHK-Cu, scaled to body size. Not medical advice.

Read before using

This tool produces a rough, educational estimate by scaling commonly-published research ranges to lean body mass. It is not a prescription, medical advice, or a substitute for a licensed clinician. Most peptides use fixed dosing, not weight-based dosing. Individual needs vary. You are solely responsible for how you use this information.

Mixing & syringe units

Target dose follows the estimate above. Change it there, or edit it directly below.

Reconstitution calculator

How much water to add and how many insulin-syringe units to draw for AHK-Cu. Educational only.

mL

Draw to this mark

40units

= 0.4 mL for a 2 mg dose

0100 u (1 mL)

Concentration

5 mg/mL

Doses per vial

5

A U-100 syringe reads 100 units per mL. This is a reconstitution math helper only, not a prescription or dosing advice. Verify every calculation and consult a qualified healthcare provider.

Possible side effects

Injection site irritation or rednessPotential for copper accumulation with excessive or prolonged useLimited long-term human safety data for injectable administrationPossible sensitivity reactions in susceptible individuals

Stacking notes

Sometimes discussed alongside GHK-Cu (copper peptide) in combined protocols for skin and hair support; comparative data between the two is limited.

Common protocols

Daily or every-other-day subcutaneous dosing in multi-week cyclesPeriodic breaks between cycles to limit cumulative copper exposure

Common questions

What is AHK-Cu used for?

AHK-Cu, or Alanyl-Histidyl-Lysine copper tripeptide, is a copper-binding peptide related to the more widely studied GHK-Cu, distinguished by its amino acid sequence and research focus that includes hair follicle biology alongside general skin support. It has drawn research interest for its proposed effects on vascular endothelial growth factor (VEGF) expression and dermal papilla cell activity, both implicated in hair growth cycles. This profile addresses AHK-Cu in the context of reconstituted, subcutaneous protocols, which is less studied overall than topical application. Human clinical data specific to this exact peptide remains limited compared to its better-known counterpart GHK-Cu. Reported benefits include studied for potential effects on vegf expression relevant to hair follicle blood supply, investigated for possible influence on dermal papilla cell activity linked to hair growth cycles, explored alongside other copper peptides for general tissue-support properties.

What is a typical AHK-Cu dose?

Reported ranges run 1-3 mg. A low protocol is 1 mg once daily or every other day, and a high protocol is 3 mg once daily, at the higher end of ranges discussed in research and community protocols. This is reference information, not a dosing recommendation.

What is the half life of AHK-Cu?

Short, generally cited in the range of minutes to a few hours for similar copper-peptide complexes, though tissue effects may persist beyond plasma clearance.. That is what sets the dosing frequency, and it is why the timing guidance is evening.

How is AHK-Cu administered?

Subcutaneous: into fat, under the skin. This profile covers AHK-Cu in reconstituted, injectable/subcutaneous protocols rather than conventional topical cosmetic formulations.

How long is a AHK-Cu cycle?

Multi-week cycles of daily or near-daily dosing are commonly described on, followed by Periodic breaks are often suggested to avoid cumulative copper exposure off. Monitoring of copper levels may be advisable with extended or repeated cycles given copper's potential for tissue accumulation.

What are the side effects of AHK-Cu?

Reported side effects include injection site irritation or redness, potential for copper accumulation with excessive or prolonged use, limited long-term human safety data for injectable administration, possible sensitivity reactions in susceptible individuals. Evidence level for this compound is emerging research.

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Educational use only, not medical advice. This profile is provided for research and educational purposes. AHK-Cu may be a research compound or a prescription medication; nothing here is intended to diagnose, treat, cure, or prevent any disease. Dosing figures reflect commonly-published research ranges, not a prescription. Consult a qualified healthcare provider before making any health decision. Read the full disclaimer →

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Educational use only. The information and calculators on this site are provided for research and educational purposes and are not medical advice, a diagnosis, a prescription, or a substitute for a licensed healthcare provider. Many compounds described are research compounds or prescription medicines not approved for general use. You must be 21 or older. Always consult a qualified clinician before making any health decision. Read the full disclaimer · Privacy Policy

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