GHK-Cu Serum
GHK-Cu is a naturally occurring tripeptide-copper complex of 3 amino acids (Gly-His-Lys) synthesised as a copper-coordinated peptide, studied in dermatology for its role in modulating collagen synthesis and dermal stem-cell signalling.
A topical copper-peptide serum formulated for skin barrier support, collagen signalling, and visible texture renewal — made for clinical skincare routines.
- Availability
- Ships within 1 business day
- Storage
- Room temperature. Keep from direct sunlight.
- Ships from
- European fulfilment centre, express tracked
Lab proof, by batch
- Tested independently, by batch
- Certificate of analysis available
- Purity and identity on record
Dermal Remodelling & Synthesis Research.
GHK-Cu is a naturally occurring tripeptide-copper complex studied for its role in extracellular matrix remodelling, wound-response signalling, and antioxidant activity in skin. Formulated at a research-informed concentration in a clean, fragrance-free base.
- — Pickart et al. — GHK-Cu and extracellular matrix remodelling
- — Gruchlik et al. — copper-peptide effects on dermal fibroblasts
Research context only. Not medical advice. Consult a qualified clinician before use.
- 30 mL airless pump bottle
- 0.05% GHK-Cu — research-informed concentration
- Fragrance-free, paraben-free, vegan formulation
- Store at room temperature, away from direct sunlight
- 30 mL airless pump bottle of GHK-Cu Serum
- Application card with routine guidance
- Ingredient list printed on every outer carton
What the research reports about this molecule.
Classic parameters from peer-reviewed literature. Not human dosing guidance — read alongside the PubMed references on /learn.
- Sequence
- Tripeptide-copper complex (Gly-His-Lys)
- Molecular weight
- 340 Da (peptide)
- Mechanism
- Modulates collagen synthesis and dermal stem-cell signalling
- Research domain
- Dermatology
- Storage
- Room temperature, away from direct sunlight; refrigerate after opening for extended use
Simple, deliberate steps — not a protocol.
These are practical handling notes. Dosing decisions stay between you and your clinician.
- 1
Apply 2–3 pumps to cleansed skin, morning or evening
- 2
Pat in gently; follow with moisturiser and SPF in the morning
- 3
Patch-test on the inner forearm before first full-face use
How-to-use guide
Read the research protocol
Concise reconstitution, dosing, and handling instructions.
Each release is matched with quality documentation through a documented verification path. Identity, purity, and composition test results sit on the product page before you buy.
Every batch is verified by an ISO/IEC 17025-accredited laboratory before release. Identity, purity, and documentation travel with the product — not behind a form.
Sensitive peptides ship in insulated insulated cold packaging with gel packs sized for a 48-hour transit window, tracked door to door.
Everything worth asking before you order.
Shipping, storage, quality, and when to speak to a clinician — without the runaround.
What proof of quality comes with my order?
Every batch ships with a batch code printed on the vial. The matching independent lab report — identity, purity, and composition — independently lab-tested results — is linked on the product page and also available from your order page after purchase.
How should I store my order when it arrives?
Sensitive peptides ship cold. Move them to a fridge on arrival (2–8 °C) unless the product page states otherwise. Lyophilised vials can tolerate short transit at ambient temperature but should not be left unrefrigerated for extended periods once delivered.
What happens after I place an order?
You will receive an order confirmation, then a dispatch email with tracking once the package leaves our fulfilment centre. Your order page keeps the batch code, lab report, and storage guidance in one place for later reference.
How do I reconstitute a lyophilised peptide vial?
Bring both the lyophilised vial and the bacteriostatic water to room temperature, equalise pressure with a sterile vented needle, then inject the solvent slowly down the side of the vial. Swirl gently — never shake — until clear, and refrigerate at 2–8 °C.
How much bacteriostatic water should I add to my peptide vial?
The calculation is peptide mass (mg) ÷ desired concentration (mg/mL) = volume of bacteriostatic water in mL. For example, a 5 mg vial at 1 mg/mL needs 5 mL; at 2 mg/mL, 2.5 mL. Every Peptyds product page carries a suggested reconstitution volume tuned to the vial size.
How long does a reconstituted peptide stay stable in the fridge?
Most lyophilised peptides reconstituted with bacteriostatic water remain stable for 28–30 days at 2–8 °C, protected from light. A handful of short, fragile sequences — Epithalon among them — drop to roughly 14 days. Never freeze a reconstituted vial.
What side effects are most commonly reported across peptide research?
Across published trials and case series, the most frequent reported events are injection-site reactions (redness, induration, transient discomfort), headache, mild nausea, and temporary fatigue. GLP-1 and dual-agonist class peptides add dose-dependent gastrointestinal effects.
Who should not use peptides?
Peptides are not appropriate for anyone who is pregnant, nursing, planning conception, under 18, managing active cancer, or on immunosuppressants — and competitive athletes governed by WADA must avoid every peptide on the prohibited list. Anyone with a personal or family history of melanoma should specifically avoid melanocortin-receptor agonists.