topical vs subcutaneous ghk cu GHK-Cu Cooper Peptide: The Complete Skin & Repair Guide (2026) GHK-Cu Facial Serum | Empower
Description
Intramuscular (IM) shots are quick vitamin and nutrient injections delivered directly into the muscle
Songtao Zhao, MD3,6
Synthetic GHK-Cu is used in cosmetics as a reparative and anti-aging ingredient
The evidence summary below is compound-level only
