Expanding on these findings, we propose that cysteine metabolism may play a pivotal role in keratin function abnormalities and damage to the hair follicles keratinizing layer
10.1016/S1473-3099(15)00133-4 3
Moreover, our findings align with those of Kumar et al 26 and other studies, which demonstrate that GSH levels decrease with age, potentially due to reduced synthesis resulting from deficiencies in amino acid precursors, such as glycine and cysteine
The copper peptide addresses certain aspects of follicle health while other treatments address different factors
On the antioxidant front, GHK-Cu increases superoxide dismutase (SOD) activity through copper cofactor delivery, elevates catalase activity for hydrogen peroxide breakdown, and increases total glutathione levels
Lack of large, randomised control studies on the use of polypodium & glutathione supplements in the management of melasma & disorders of pigmentation