gcvR and gcvA are already present in E
Pickart stated that GHK-Cu has a favorable safety profile, highlighting that there is no indication that it causes side effects in test subjects [2]: The molecule is very safe and no issues have ever arisen during its use as a skin cosmetic or in human wound healing studies. In a 2018 review based on new genetic data, he reiterated that all biological actions associated with GHK appear to be health positive. He pointed to over four decades of GHK research encompassing cell, tissue, and animal studies, also noting the peptides inclusion in commercial anti-aging and cosmetic products such as creams, liposomes, and dermal patches [1]
If you want glutathione to reach your cells in meaningful amounts, injection is the only reliable method
This is where bac water, or bacteriostatic water, comes in
If the product has already been opened, oxygen, moisture and penetrating microorganisms affect the shelf life
Disclaimer: These statements have not been evaluated by any official health authority