The Skin Rejuvenation Peptide
Anti-Aging
Boosts collagen production and skin regeneration for visible anti-aging results.
$229 / month
Starting at $175/mo with 3-month supply + WELCOME10
About
GHK-Cu — glycyl-L-histidyl-L-lysine bound to copper — is a tripeptide your body makes naturally; it is found in plasma, saliva, and urine. It signals fibroblasts to produce collagen and elastin, accelerates wound and tissue remodeling, and shifts gene expression toward repair. Levels fall about 60% between age 20 and 60, which is a big part of why skin thins and heals slower over time.
In a controlled human trial, GHK-Cu applied to skin raised collagen in 70% of volunteers — beating vitamin C (50%) and retinoic acid (40%) — and improved firmness and elasticity. At the gene level it modulates over 4,000 human genes, including 47 directly involved in DNA repair. PeRx delivers it as a subcutaneous injection, which reaches skin, connective tissue, and hair follicles at a full therapeutic dose — not just the surface layers a topical serum can touch.
PeRx ships GHK-Cu fully reconstituted from an FDA-registered 503A pharmacy. No mixing — insulin syringes and a step-by-step guide arrive in the box. It is a subcutaneous injection on a provider-determined schedule.
Stimulates collagen and elastin for visibly firmer, more resilient skin. GHK-Cu outperformed vitamin C and retinoic acid in controlled trials.
Reactivates the structural proteins your skin needs. Fine lines and wrinkles visibly reduce as the architecture rebuilds.
Accelerates wound healing and post-procedure recovery. GHK-Cu supports tissue remodeling across skin, bone, and connective tissue.
Enlarges hair follicles and extends the growth phase of the hair cycle, adding real thickness over time.
Shifts gene expression toward regeneration. GHK-Cu modulates over 4,000 human genes, including 47 directly involved in DNA repair.
Why people explore GHK-Cu
GHK-Cu activates fibroblasts — the cells that make collagen and elastin, the proteins behind firmness and bounce. In a controlled trial it out-produced both vitamin C and retinoic acid for collagen.
Collagen rose in 70% of volunteers vs 50% (vitamin C) and 40% (retinoic acid).
Using the Broad Institute's Connectivity Map, researchers found GHK-Cu modulates over 4,000 human genes — moving expression away from aged, damage-prone patterns and toward regenerative ones. Not one pathway; a system-wide shift.
GHK-Cu activates 47 genes involved in recognizing and repairing DNA damage — the damage that accumulates with age and drives everything from visible aging to disease risk. It also speeds wound and post-procedure healing across skin, bone, and connective tissue.
What it helps with
Ideal for
Those seeking anti-aging skin benefits · Individuals with skin damage or scarring · Anyone looking to improve skin texture and firmness · Adults seeking skin rejuvenation
The science
GHK-Cu activates genes involved in tissue remodeling and repair. It stimulates collagen and elastin production, promotes angiogenesis (new blood vessel formation), and has anti-inflammatory properties. The copper component is essential for enzyme function in skin repair.
GHK-Cu is given as a subcutaneous injection on a provider-determined schedule — the SubQ route delivers a full therapeutic dose systemically, reaching skin, connective tissue, and hair follicles, not just the surface a topical serum touches.
GHK-Cu activates genes involved in tissue remodeling and repair. It stimulates collagen and elastin production, promotes angiogenesis (new blood-vessel formation), and has anti-inflammatory properties. The copper component is essential for enzyme function in skin repair.
Over the following weeks most people notice better hydration and texture first, plus faster healing of blemishes or post-procedure spots (weeks 1–2), then visibly firmer skin and softer fine lines (weeks 2–4), then deeper renewal — elasticity, thicker hair, faded scarring — through weeks 4–12.
What the research shows
70%
Of volunteers showed increased collagen (vs 50% vitamin C, 40% retinoic acid)
4,000+
Human genes GHK-Cu modulates toward regeneration
47
DNA-repair genes it activates
~60%
Drop in GHK-Cu levels between age 20 and 60
Our medication is delivered from a state-licensed pharmacy in our network, right to your door when you need it.
Our pharmacies perform third-party testing through FDA and DEA registered labs to run quality control checks for every compounded lot. They test four key characteristics associated with quality and safety.
Performed on every batch to confirm the active ingredient is present at the labeled concentration. Your vial contains exactly what it should.
Tests for the presence of bacteria, fungi, and other microorganisms. Every batch is tested and must meet the requirements of USP 797.1.
Screens for bacterial endotoxins that can cause fever or adverse reactions. Every batch is tested and must not exceed the threshold limits defined in USP 85.
Assesses the acid/base balance to ensure minimal irritation upon injection and confirm the solution is within the correct range for subcutaneous administration.
What to expect
Week 1–2
What you may notice: Skin may feel slightly more hydrated, and wounds or blemishes may begin healing faster. Some people notice a subtle improvement in skin texture within the first week.
What’s happening: GHK-Cu is activating fibroblasts and signaling your body to ramp up collagen and elastin production. DNA-repair genes are switching on.
Week 2–4
What you may notice: Skin starts to look firmer and smoother. Fine lines may appear softer. Any post-procedure or injury healing is noticeably faster.
What’s happening: New collagen and elastin are being laid down in the skin matrix. Over 4,000 genes are shifting toward regenerative expression patterns.
Week 4–8
What you may notice: Skin elasticity and firmness continue improving. Hair may feel thicker. People around you start commenting on how well your skin looks.
What’s happening: Structural proteins are maturing and strengthening. Weeks of gene-expression remodeling are producing measurable tissue change.
Week 8–12+
What you may notice: Peak results in skin quality, firmness, and elasticity. Scars and blemishes have faded significantly. Skin looks and feels years younger.
What’s happening: The full regenerative program is established. Your provider may adjust to a maintenance protocol to sustain results long-term.
Comparison
Both are anti-aging peptides — here's how they differ.
| GHK-Cu | Epitalon | |
|---|---|---|
| Best for | Skin rejuvenation, collagen, wound healing, hair | Cellular longevity and telomere protection |
| How it works | Activates collagen/elastin production and DNA repair | Activates telomerase to help maintain telomere length |
| Scope | Skin, connective tissue, hair, wound repair | Cellular aging, DNA protection, melatonin regulation |
| Best if you want | Visible skin improvements and faster healing | DNA-level cellular renewal |
| Can combine? | Yes — pairs well with Epitalon (also sold as a combo vial) | Yes — pairs well with GHK-Cu |
What’s included
From the moment you finish your assessment to your first dose, every step is handled by licensed providers and U.S. pharmacies.
New to self-injection? See the step-by-step guideFAQ
Patient reviews
This is not medical advice. Every patient's experience differs and not everyone qualifies for peptide therapy. All reviews are from verified PeRx patients and are published as submitted. Peptide therapy requires a valid prescription from a licensed provider.
Your safety, first
All prescriptions are issued by a licensed US provider after reviewing your intake.
Side effects, contraindications, and what to discuss with your provider before starting.
Read safety informationSupporting research
A selection of peer-reviewed work on GHK-Cu. Browse the full literature on PubMed and Google Scholar for ongoing research.
Collagen boost: out-produced vitamin C and retinoic acid
Pickart L, Margolina A. Cosmetics. 2018;5(2):29.GHK gene expression: 4,000+ genes shifted toward regeneration
Pickart L, Margolina A. Int J Mol Sci. 2018;19(7):2047.GHK-Cu + hyaluronic acid: 25× collagen IV increase
Jiang F et al. J Cosmet Dermatol. 2023;22(9):2598–2604.The statements on this page have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. The FDA does not review or approve compounded medications for safety or effectiveness. Off-label use must be prescribed and supervised by a licensed provider.
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Last updated April 2026
Medical disclaimer
The information provided on this page is for educational purposes only and is not intended as medical advice, diagnosis, or treatment. Peptide therapy requires a valid prescription from a licensed healthcare provider. Individual results may vary. No specific outcomes are guaranteed.
The peptides on this site are not FDA-approved. They are compounded by licensed pharmacies under provider supervision. Certain peptides are prohibited by WADA and major sports organizations. Statements on this page have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease.
Take our 2-minute assessment. A licensed US provider reviews and, if appropriate, prescribes a protocol shipped to your door.
$229 / month
Starting at $175/mo with 3-month supply + WELCOME10
