After 4 months taking gluthathione the changes are temporary. Can you suggest something more permanent?

Not only is skin change color associated with glutathione temporary, it is also unhealthy in the long term it can cause liver issues.There are no medical procedures that can whiten skin permanently 

The enlighten and cosmelan peel will do a great job of lightening, brightening, and evening out your overall skin tone on your face. This can also be used on certain areas of the body. See an expert. Best, Dr. Emer. 

Hi,thank you for the question.There is no permanent treatment for skin whitening.Any treatment you do will need maintenance therapy.