Over the years, I have personally evaluated dozens of serums and medical-grade formulations
Furthermore, GHK-Cu has been shown to modulate the immune system, enhancing its ability to fight pathogens while keeping autoimmune overreactions in check
It is also worth being explicit about what documented means here, because it is the load-bearing word for a YMYL page
Bulletin of Experimental Biology and Medicine, 153 (2), 255-258
Injectable anti-aging protocol: Dose: 1-2mg daily Frequency: 5 days on, 2 days off OR daily for 30 days Cycle: 30 days on, 14 days off Duration: Minimum 2-3 cycles for substantial results Topical anti-aging protocol: Concentration: 2-3% serum or cream Application: Twice daily (morning and evening) Duration: 12+ weeks continuous use Combine with: Sunscreen (always), retinoids (evening, separate application) Combination approach: Maximum anti-aging results come from combining injectable and topical
Abundance: GSH is the most abundant non-protein thiol (a compound containing a sulfur-hydrogen bond, 3 SH found in nearly every cell in the body