Glutathione can play a long-lasting role in the human body, effectively reduce the content of Mylanin pigment, disrupt the process of pigment production, dilute the pigment to achieve whitening effect, and injection with the same type of whitening products in the store, Vitamin C, is better.
https://www.prost-pharma.com/glutathione/glutathione-injection/glutathione-injection-with-vitamin-c.html