Hi! Glutathione can improve skin colour but cannot make you fairer than your original colour.
Next Steps
You can visit clinic personally for treatment options.
Health Tips
You can refer my blog post on "10 Tips for Brighter & Younger Looking Skin!" by Dr. Jolly Shah Kapadia - https://www.practo.com/healthfeed/10-tips-for-brighter-younger-looking-skin-16374/post