GHK-Cu

GHK-Cu is a naturally occurring copper-binding peptide found in the body that helps support skin repair, hair growth, and tissue regeneration. It delivers copper to cells where it aids healing, collagen production, and protection against inflammation and oxidative damage. Research has made it popular in both medical and cosmetic fields for its potential rejuvenating effects.

Description

• GHK-Cu (Glycyl-L-Histidyl-L-Lysine Copper) is a naturally occurring tripeptide that binds copper ions and promotes tissue repair.
• Discovered in human plasma and studied for its regenerative, anti-inflammatory, and anti-aging effects.
• Used in research and cosmetics for skin rejuvenation, wound healing, and hair restoration.

How It Works

• Delivers bioavailable copper (Cu²⁺) to support enzymatic activity essential for healing and collagen synthesis.
• Stimulates fibroblast function, angiogenesis, and production of collagen, elastin, and glycosaminoglycans.
• Regulates gene expression toward antioxidant, anti-inflammatory, and regenerative profiles.

Documented Effects

• Enhances wound healing and reduces scar tissue formation in clinical and animal studies.
• Promotes hair growth and thickening by reactivating dormant follicles and improving scalp microcirculation.
• Improves skin elasticity, firmness, and tone by increasing collagen and dermal density.
• Reduces fine lines, wrinkles, and visible photodamage with consistent topical or injectable use.
• Exerts antioxidant and anti-inflammatory actions by downregulating pro-oxidative cytokines.

Theoretical Effects

• May support mitochondrial health and cellular energy production in aging tissues.
• Potential systemic anti-aging and tissue-regenerative effects remain under investigation.
• Long-term systemic outcomes have not been confirmed in controlled human trials.

Pharmacokinetics

• Half-life: estimated 20–30 minutes after subcutaneous administration.
• Time to peak concentration: ~1 hour post-injection.
• Steady-state: not sustained; GHK-Cu acts transiently by activating local repair cascades.

Duration of Effects

• Biological effects (collagen synthesis, wound repair) can persist for several days after exposure.
• Topical or microinjection applications provide extended localized benefits.
• Repeated use may enhance cumulative rejuvenating results in tissue studies.

Reconstitution

• Use only bacteriostatic water to reconstitute the lyophilized peptide.
• Example vial: 50 mg of GHK-Cu
• Choose reconstitution volume based on dosing convenience:
  • 1 mL water → 50 mg/mL → 5 mg per 10 units
  • 2 mL water → 25 mg/mL → 2.5 mg per 10 units
  • 10 mL water → 5 mg/mL → 500 mcg per 10 units
• Swirl gently to dissolve; do not shake or foam.
• Refrigerate reconstituted solution (2–8 °C). Discard after ~30 days for best stability.

GHK-Cu – Injectable Dosage Overview (Research Use)

Typical Starting Dose

• Injectable (off-label, anecdotal): ~100–250 mcg subcutaneous (SC) once daily.
• Conservative entry: start at ~100 mcg SC daily to assess tolerance and tissue response.

Common Research Range

• Injectable reports: 100–500 mcg SC daily → up to ~1 mg/day in intensive repair protocols.
• Used for localized rejuvenation, wound recovery, and cosmetic research applications.

Maximum Daily Dose

• Anecdotal ceiling: ~1 mg/day SC.
• Higher doses offer no verified advantage and may disrupt copper balance.

Standard Cycle Length

• Common research cycle: 3–6 weeks of daily use, followed by 2–4 weeks off.
• For hair or skin protocols: may repeat cycles several times annually.

Typical and Maximum Session Doses (Microneedling)

• Typical per-zone dose: ~250 mcg to 1 mg depending on surface area.
• Total session dose: 1–7 mg divided across multiple zones.
• Above 7 mg total per session shows no confirmed added benefit.

Clinical Notes

• Administer via superficial subcutaneous injection; common sites include abdomen, thigh, and upper arm. Rotate injection sites to minimize irritation.
• No tapering is required; GHK-Cu clears gradually and does not cause receptor down-regulation.
• Can be combined with other cosmetic or metabolic therapies (e.g., GLP-1 RAs such as Semaglutide), but monitor for nausea or transient vasodilation.
• Topical and injectable forms should not be used simultaneously on the same day to avoid unnecessary systemic exposure.
• Stable for about 30 days when refrigerated (2–8°C). Protect from light and heat. Avoid freezing.

Safety Notes (First-Time Use)

• Start low (~100 mcg SC) and increase gradually if tolerated.
• Possible mild redness, tingling, or warmth at injection site.
• Avoid concurrent high-dose copper supplementation to prevent imbalance.
• Maintain sterile handling and refrigeration (2–8 °C).
• Intended for research and educational use only.

Microneedling weekly treatment and starting dosage

• Begin with one session per week using a low cosmetic concentration of GHK-Cu in aloe vera.
• Reconstitute 50 mg lyophilized GHK-cu adding 10 mL bacteriostatic water to the vial
• For topical skincare, cosmetic formula typically use: ≈ 0.02% – 0.05% GHK-Cu
• This creates a stock concentration of 5 mg/mL —> 1 mL = 100 units
• Each unit contains 0.05 mg GHK-Cu

Note *** That is the normal range found in commercial copper peptide serums

Create serum using GHK-Cu and pure aloe vera

• 0.05% GHK-Cu Aloe Vera Serum example (cosmetic math only)
• 0.05% = 0.5 mg GHK-Cu per 1 mL (≈1 g) of finished serum
• For a 10 mL session-size batch:
• Required GHK-Cu = 10 mL × 0.5 mg = 5 mg
Stock concentration = 5 mg/mL
• Amount of stock needed:
• 5 mg ÷ 5 mg/mL = 1 mL
• = 100 units of GHK-Cu stock solution
Aloe vera and GHK-cu needed for final mixture (0.05% cosmetic):
• 1 mL (100 units) reconstituted GHK-Cu stock
• 10 mL total − 1 mL stock = 9 mL aloe vera
• 9 mL (900 units) aloe vera
• Total: 10 mL at 0.05%

Note *** For freshness and minimal contamination, combine only 1 session’s worth of aloe + reconstituted GHK-Cu just before use. Discard leftovers.

Use microneedling stamp on treatment area (0.25–0.5 mm)

• Cleanse the skin, disinfect the stamp, and use a vertical stamping pattern over the treatment area. Keep pressure even, avoid dragging, and stop if the skin bleeds or reacts strongly.

Apply GHK-Cu serum to the treated area and wait 10–15 minutes

• After stamping, lightly apply your freshly mixed serum. Waiting 10–15 minutes allows the skin to calm and the serum to absorb without overwhelming freshly opened micro-channels.

Apply hyaluronic acid

• After the waiting period, apply a simple 1% hyaluronic acid gel to boost hydration and soothe the treated area. Avoid acids, retinoids, vitamin C, or fragrances for 24–48 hours.