99% Pharmaceutical-Grade Purity - High-content 2000mcg specification GHK-Cu copper peptide for skin tissue repair, anti-oxidation, collagen regeneration and cell activity research use. 1.Lab-Verified 2000mcg Standard Specification - Precisely calibrated sterile lyophilized powder with stable copper peptide content for professional laboratory trials. 2.Skin Repair & Anti-Aging Benefits - Bioactive copper peptide boosts collagen & elastin synthesis, accelerates damaged skin tissue repair, removes free radicals and regulates epidermal cell metabolism for cosmetic peptide mechanism research studies. 3.Third-Party HPLC/LC-MS Tested - Each batch undergoes strict purity and content detection with complete COA qualification documents. 4.Easy Reconstitution - Rapidly soluble in bacteriostatic water, clear stable solution suitable for all in vitro and in vivo laboratory experiments.