is glutathione produced in the liver Depletion of hepatic and selective protein oxidation and inhibition of lipogenesis Glutathione! - PMC
Description
Storage areas near heat sources such as stoves, radiators, or heating vents should be avoided, as should storage in bathrooms where humidity levels may be high due to bathing and showering activities

R., Beauchamp G

AHK-Cu is sometimes favoured in hair formulations

So while you may scan the ingredient list of a skincare product for vitamin C (also known as Ascorbic Acid, Ascorbate, Ascorbyl Palmitate, Magnesium Ascorbyl Phosphate and Ascorbyl Glucoside), its not a sure thing that youre actually getting a powerhouse of a treatment