Quickstart Highlights

GHK-Cu (glycyl-L-histidyl-L-lysine:copper complex) is a naturally occurring copper peptide with documented roles in wound healing, tissue remodeling, and skin regeneration[1][2]. Research demonstrates activity in gene regulation related to collagen synthesis, antioxidant defense, and anti-inflammatory pathways[3][4]. This educational protocol presents practical subcutaneous administration approaches based on clinical practice patterns.

Reconstitute: Add 3.0 mL sterile water → 16.67 mg/mL concentration.

Typical range: 1.0–2.0 mg per injection (most common protocols use 5 days/week or 3×/week).

Easy measuring: At 16.67 mg/mL, 1 unit = 0.01 mL ≈ 167 mcg on a U‑100 insulin syringe.

Storage: Lyophilized: store at −20 °C (−4 °F) or below; reconstituted: refrigerate at 2–8 °C (35.6–46.4 °F) and use within 30 days.

Dosing & Reconstitution Guide

Educational guide for reconstitution and common dosing patterns

Standard / Conservative Approach (3 mL = 16.67 mg/mL; 5 days/week)

Week/PhaseDose per InjectionUnits (per injection) (mL)

Weeks 1–4   1.0 mg (1000 mcg)   6 units (0.06 mL)

Weeks 5–8   1.5 mg (1500 mcg)   9 units (0.09 mL)

Weeks 9–12   +2.0 mg (2000 mcg)   12 units (0.12 mL)

Frequency: Inject once daily, 5 days per week subcutaneously[5][6]. This gradual titration allows assessment of individual tolerance while maintaining practical injection volumes. For ≤10‑unit (≤0.10 mL) administrations, consider 30‑ or 50‑unit insulin syringes for improved readability.

Reconstitution Steps

Draw 3.0 mL sterile or bacteriostatic water with a sterile syringe.

Inject slowly down the vial wall to minimize foaming.

Gently swirl or roll the vial until the peptide fully dissolves (do not shake vigorously).

Label with reconstitution date and refrigerate at 2–8 °C (35.6–46.4 °F), protected from light.

Alternative Protocol (3 mL = 16.67 mg/mL; 3× weekly)

Week/PhaseDose per InjectionUnits (per injection) (mL)

Weeks 1–12+2.0 mg (2000 mcg)12 units (0.12 mL)

Frequency: Inject 2 mg three times per week (e.g., Monday/Wednesday/Friday)[6]. This protocol maintains consistent weekly dosing (~6 mg/week) with less frequent injections.

Important: This guide is for educational purposes only and is not medical advice. For research use only. Not for human consumption.

Supplies Needed

Plan based on an 8–16 week protocol. Calculations shown for both 5 days/week and 3×/week protocols.

Peptide Vials (GHK-Cu, 50 mg each):

5 days/week (1.0–2.0 mg/day):

8 weeks (~50 mg total) ≈ 1 vial

12 weeks (~90 mg total) ≈ 2 vials

16 weeks (~130 mg total) ≈ 3 vials

3×/week (2 mg each):

8 weeks (~48 mg) ≈ 1 vial

12 weeks (~72 mg) ≈ 2 vials

16 weeks (~96 mg) ≈ 2 vials

Insulin Syringes (U‑100, 29–31 gauge):

5 days/week:

Per week: 5 syringes

8 weeks: 40 syringes

12 weeks: 60 syringes

16 weeks: 80 syringes

3×/week:

Per week: 3 syringes

8 weeks: 24 syringes

12 weeks: 36 syringes

16 weeks: 48 syringes

Sterile or Bacteriostatic Water (10 mL bottles): Use ~3.0 mL per vial for reconstitution.

1 vial protocols: 3 mL → 1 × 10 mL bottle

2 vial protocols: 6 mL → 1 × 10 mL bottle

3 vial protocols: 9 mL → 1 × 10 mL bottle

Alcohol Swabs: One for the vial stopper + one for the injection site each administration.

5 days/week:

Per week: 10 swabs (2 per injection)

8 weeks: 80 swabs → recommend 1 × 100‑count box

12 weeks: 120 swabs → recommend 2 × 100‑count boxes

16 weeks: 160 swabs → recommend 2 × 100‑count boxes

3×/week:

Per week: 6 swabs

8 weeks: 48 swabs → recommend 1 × 100‑count box

12 weeks: 72 swabs → recommend 1 × 100‑count box

16 weeks: 96 swabs → recommend 1 × 100‑count box

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Protocol Overview

Concise summary of common GHK-Cu administration patterns.

Goal: Support tissue remodeling, wound healing, and skin regeneration through documented biological pathways[1][2].

Schedule: Subcutaneous injections for 8–12 weeks (extend to 16 weeks if desired).

Dose Range: 1.0–2.0 mg per injection; frequency 3–5 days per week.

Reconstitution: 3.0 mL per 50 mg vial (16.67 mg/mL) provides practical unit measurements.

Storage: Lyophilized frozen; reconstituted refrigerated and used within 30 days.

Dosing Protocol

Flexible approaches based on clinical practice patterns.

Conservative (5 days/week): Start 1.0 mg daily; titrate to 1.5–2.0 mg over 4–8 weeks.

Alternative (3×/week): Consistent 2.0 mg per injection for simplified scheduling.

Route: Subcutaneous injection (abdomen, thighs, or upper arms).

Cycle Length: 8–12 weeks typical; may extend to 16 weeks based on individual goals.

Timing: Any consistent time of day; rotate injection sites systematically.

Storage Instructions

Proper storage maintains peptide stability and potency.

Lyophilized (dry powder): Store at −20 °C (−4 °F) or lower in dry, dark conditions[7][8]. Keep vial tightly sealed with desiccant if possible to minimize moisture exposure.

Reconstituted (in solution): Refrigerate at 2–8 °C (35.6–46.4 °F) and use within 30 days for optimal potency[9]. Bacteriostatic water helps inhibit bacterial growth.

Aliquoting: For longer storage, divide solution into sterile vials and freeze at −20 °C (−4 °F)[10]. Avoid repeated freeze–thaw cycles as they degrade peptides over time[11].

Allow vials to reach room temperature before opening to reduce condensation.

Important Notes

Practical considerations for safe and consistent administration.

Use new sterile insulin syringes for each injection; dispose in proper sharps containers.

Rotate injection sites (abdomen at least 1 inch from navel, outer thighs, upper arms) to prevent irritation and lipodystrophy[12][13].

Clean injection site with alcohol swab and allow to air-dry completely before injecting[14].

Inject slowly and steadily; withdraw needle at same angle as insertion.

Document dose, date, and injection site to maintain consistency and track rotation.

How This Works

GHK-Cu is a naturally occurring tripeptide that complexes with copper ions to modulate numerous biological processes. Research has demonstrated its involvement in wound healing through enhanced collagen and decorin gene expression[1], activation of tissue remodeling pathways[2], and regulation of genes associated with antioxidant defense and anti-inflammatory responses[3][4]. Preclinical studies show GHK-Cu is active at very low doses in animals (approximately 0.5 mcg/kg in rodent models)[15], while clinical practice employs milligram-range dosing in humans to achieve systemic effects[5][6]. The peptide demonstrates multifunctional activity across skin, nervous system, and vascular tissue, with documented gene-regulatory effects that extend beyond simple wound healing[