glutathione serums 25% Vitamin C + Clinical Serum for Brightening & Dark Spots and relieves the damage of the external environment to the skin Numbuzin No.5+ Glutathione Vitamin Concentrated

This leave-in serum is enriched with copper peptides and helps support the look of healthier-looking hair while maintaining scalp comfort

23 , e457e464 (2008)

Commun Biol 8 , 299 (2025)

Mechanism Diagram GHK-Cu vs Growth Peptides (Key Differences) GHK-Cu - Copper binding tripeptide - Acts locally in tissue - Modulates gene expression and ECM remodelling - Not endocrine - Does not elevate GH or IGF-1 GH Secretagogues (e.g., Ipamorelin, Hexarelin, MK-677) - Act via endocrine receptors - Stimulate systemic GH release - Increase IGF-1 - Primarily hormonal These compounds operate in completely different biological domains

The strongest approach is to build a daily routine, stay consistent, support the skin barrier, support the scalp environment and use the full GHK-Cu system as part of a long-term routine

It has long been thought that humans were unable to utilize preformed glutathione, but recent research proves otherwise