US$ 21.58
glutathione persulfide Frontiers Reactive Sulfur Species and Protein
Description
Boosts natural collagen production: Improves skin health and texture from the inside out

2) Im assuming because of the concentration I noticed a hard chalky substance that would adhere to my hair where ever I applied this solution

Wound Healing and Tissue Regeneration Since hair follicles originate from the same stem cell structures that participate in wound healing, the regenerative power of GHK-Cu naturally supports follicular repair

Contrary to for example fatty acids, amino acids due to their lipophobicity require transporters for the import/export
