January 09, 2026 5.0 Great doctor
Safety Information Topical GHK-Cu Mild temporary redness Slight itching Minor irritation (uncommon) Injectable GHK-Cu Pain, swelling, or bruising at the injection site Temporary redness Rare risk of infection or allergic reaction Use caution or avoid if: You have a known allergy to formulation ingredients You are pregnant or breastfeeding (insufficient safety data) Typical Use (General Guidance) Topical Common concentrations: ~0.12% Apply once or twice daily to clean skin Best results typically require consistent use for weeks to months Injectable Dosing varies by product and treatment goal Administered by healthcare professionals May be weekly or less frequent depending on formulation Bottom Line GHK-Cu is a well-studied peptidecopper complex with evidence supporting roles in skin repair, tissue remodeling, and improved appearance of aging skin

Adult studies indicate that 65 % of patients who achieve 56.99 % weight reduction exhibit steatosis improvement on biopsy, and some completely resolve any steatosis [38,39]
Participants reported any negative effects, and safety evaluations included physical exams, vital signs, electrocardiograms, and blood tests
At Real Peptides, every batch is subjected to rigorous testing to ensure it meets the highest standards of purity and identity, so you can be confident that the compound in your vial is exactly what it's supposed to be