l glutathione powder uk Reduced 98% Clean Genuine L-Glutathione Supplement –
Description
Glutathione does work on the tyrosinase pathway, which is responsible for pigmentation

Kubatka P, Mazurakova A, Samec M, Koklesova L, Zhai K, Al-Ishaq R, et al
Medication Although, many dogs can be successfully treated through diet alone, in more severe cases medications may be required

Scientific Reports 10:16749
