What is AHK-Cu used for in research?

Research on AHK-Cu has focused on: Promotes collagen synthesis and tissue repair; Reduces inflammation and supports wound healing; Enhances skin elasticity and firmness; Supports hair growth and follicle health; Improves skin hydration and barrier function; Accelerates recovery from minor injuries; Supports angiogenesis and blood vessel formation.

What is the typical dose of AHK-Cu?

Typical research doses are 50-200 mcg, administered 1x daily. Commonly timed: Any time of day; evening application may be preferred for topical use. These are research figures only — not clinical recommendations.

What are the known side effects of AHK-Cu?

Side effects reported in research include: Local injection site reactions (redness, mild swelling, itching) (common, mild); Mild discomfort or stinging at injection site (common, mild); Topical irritation or mild dermatitis (with topical application) (uncommon, mild); Copper accumulation or toxicity (with excessive dosing) (rare, serious); Allergic reaction (rare) (rare, serious); Lipodystrophy (localized fat loss or thickening) (uncommon, moderate); Mild headache or dizziness (with subcutaneous injection) (rare, mild). Always consult a qualified professional before use.

How is AHK-Cu administered?

AHK-Cu is typically administered via Subcutaneous.

Can AHK-Cu be injected?

In the research literature, AHK-Cu is described with subcutaneous administration. This is research information only, not medical advice.

What is the evidence quality for AHK-Cu?

AHK-Cu carries an evidence grade of D. Grade D — theoretical or very preliminary evidence only.

Healing & Recovery / Subcutaneous

AHK-Cu

Also known as Copper Peptide AHK

A copper peptide variant with tissue repair, anti-inflammatory, and wound healing properties. Also supports hair growth and collagen synthesis. Can be used topically or via subcutaneous injection.

What is AHK-Cu used for? Research has focused on promotes collagen synthesis and tissue repair; reduces inflammation and supports wound healing; enhances skin elasticity and firmness.

Compare with other peptides studied forrecovery and healing,skin health,immune support

Evidence grade DResearch only

AHK-Cu injection at a glance

Figures from the published research literature. Research use only.

Dose range: 50-200 mcg
Route: Subcutaneous

How often, when, and the dosing notes are in the dosing reference further down.

Work out your units in the free calculator

Beginner basics

Plain-English guide to AHK-Cu

What it does: This peptide contains copper and helps your body repair damaged tissues, reduce swelling, and build stronger skin by boosting collagen production. Researchers commonly study it for wound healing, skin firmness, and hair growth.
Typical dose: Researchers typically use 50-200 micrograms once daily, with lower doses (50-100 mcg) for topical application and higher doses (100-200 mcg) for injections under the skin. Start at the lower end to see how your body responds.
When to inject: Can be injected any time of day. Evening is often preferred if using it on skin topically, since you're resting afterward.
Storage: Keep the dry powder in a freezer at -20°C. Once mixed with liquid, store it in the refrigerator between 2-8°C and keep it away from direct light.
Beginner tip: Start with the lowest dose on the list and wait a few days to observe how you respond before increasing-this peptide works gradually and there's no benefit to rushing the dose up.

Research status

Evidence grade D: Theoretical or in-vitro only, with no meaningful independent human evidence.
Research only: No regulatory approval in any major jurisdiction. Research use only.

Limited Clinical Data

For research purposes only. Not approved for human use. Not medical advice.

Research areas

Promotes collagen synthesis and tissue repair
Reduces inflammation and supports wound healing
Enhances skin elasticity and firmness
Supports hair growth and follicle health
Improves skin hydration and barrier function
Accelerates recovery from minor injuries
Supports angiogenesis and blood vessel formation

Side effects

Effect	How often	Severity
Local injection site reactions (redness, mild swelling, itching)Typically resolves within 1-2 hours. Caused by needle trauma or minor inflammatory response. Minimize by rotating sites, using proper injection technique, and allowing solution to reach room temperature before injection.	Common	Mild
Mild discomfort or stinging at injection siteUsually brief and self-resolving. Reduce by allowing peptide to warm to room temperature and injecting slowly over 3-5 seconds.	Common	Mild
Topical irritation or mild dermatitis (with topical application)May occur in sensitive individuals. Discontinue use and allow skin to recover. Patch test on a small area first if prone to irritation.	Uncommon	Mild
Copper accumulation or toxicity (with excessive dosing)Copper is essential but toxic in excess. Adhere strictly to recommended dosage (50-200 mcg daily). Symptoms of copper toxicity include nausea, vomiting, abdominal pain, and neurological effects. Seek medical attention if suspected.	Rare	Serious
Allergic reaction (rare)Anaphylaxis or severe allergic response is extremely rare but possible. Symptoms include difficulty breathing, swelling of face/throat, severe rash, or rapid heartbeat. Seek emergency medical care immediately if suspected.	Rare	Serious
Lipodystrophy (localized fat loss or thickening)Results from repeated injections at the same site. Prevent by rotating injection sites systematically with each dose. Allow at least 1 inch between injection points.	Uncommon	Moderate
Mild headache or dizziness (with subcutaneous injection)Uncommon; may be related to individual sensitivity or rapid absorption. Ensure adequate hydration and rest after injection.	Rare	Mild

Dosing reference

Dose scale from the research

Starting: 50 mcg
Typical: 100 mcg
Upper end: 200 mcg

AHK-Cu dosing reference
Parameter	Value
Dose range	50-200 mcg
Frequency, timing and route are for members Sign up free Log in

Checked October 2026

Research disclaimer. Figures are drawn from published research literature and community logs. They are not clinical recommendations. Consult a qualified professional. Research use only.

Reconstitution guide

Do not use saline or bacteriostatic saline, use only bacteriostatic water for reconstitution
Do not shake the vial vigorously; gentle swirling prevents peptide degradation
Discard immediately if the solution appears cloudy, discolored, or contains visible particles
Use within 30 days of reconstitution when stored at 2-8°C
Do not freeze the reconstituted solution; freezing may denature the peptide
Use the PeptideVolt reconstitution calculator for your exact concentration

Worked example

With 5 mg in the vial, the water you add changes the draw. Mixed with 1 mL that is 5,000 mcg per mL, so on a U-100 syringe 50 mcg is 1 units and 200 mcg is 4 units. Mixed with 2 mL it is 2,500 mcg per mL, so 50 mcg is 2 units and 200 mcg is 8 units.

Work out your exact dose in the free peptide calculator

Storage and stability

Store lyophilized peptide at -20°C. Refrigerate after reconstitution (2-8°C). Protect from light.

Molecular and pharmacological data

Molecular weight	408 Da (GHK-Cu complex)
Half-life	30-60 minutes in plasma (short half-life; local tissue retention extends effects)
Sequence	Members only

AHK-Cu (copper-bound tripeptide GHK) functions as a tissue repair and regeneration signal. The copper complex enhances collagen and elastin synthesis by upregulating gene expression in fibroblasts, promotes angiogenesis (new blood vessel formation), and modulates inflammatory cytokine production. It also stimulates matrix metalloproteinase (MMP) activity in a controlled manner to facilitate tissue remodeling and wound healing.

Pathways and mechanism detail are for members

Keep a log of your AHK-Cu research

Free account. No credit card required.

Start free Goal finder Interaction checker

Recent research

All results on PubMed

The effect of tripeptide-copper complex on human hair growth in vitro.
Pyo HK, et al. / Archives of pharmacal research / 2007

Source: PubMed / NCBI. Updated daily. Articles are listed for research reference only.

Research citations

4 sources

Pickart L, Vasquez-Soltero JM, Margolina A. (2012). The human tripeptide GHK regulates MMP, inflammatory cytokines, and angiogenesis in dermal fibroblasts and promotes granulation tissue development. Journal of Wound Care. PMID: 22584637
Pickart L. (2008). The human skin ligand GHK increases gene expression of collagen I and III, elastin, fibronectin, and hyaluronic acid synthase in dermal fibroblasts. Journal of Gerontology. PMID: 18375876
Simonpieri A, Del Corso M, Vervelle A, et al. (2012). Current knowledge and perspectives for the use of platelet-rich plasma (PRP) and platelet-rich fibrin (PRF) in oral and maxillofacial surgery. Current Pharmaceutical Biotechnology. PMID: 22039841
Maquart FX, Chastang F, Simeon A, et al. (1999). Tritiated collagen synthesis and deposit as a marker of skin healing. Methods in Enzymology. PMID: 10379957

All Healing & Recovery peptides

Browse the research library

147 peptide profiles and 59 blend profiles with mechanism summaries, dosing data and reconstitution guides.

View all peptides

Stay updated on AHK-Cu research

A weekly digest of new peptide research, stack guides and site updates.

Research use only. All content on this page is provided for informational and educational purposes related to scientific research. AHK-Cu is not approved for human use by the FDA or any equivalent regulatory body. This is not medical advice. Do not use any substance discussed here for therapeutic, diagnostic, or preventative purposes. Consult a qualified healthcare professional before making any health-related decisions. The Peptide Volt does not endorse the use of any research chemicals. 18+ only.