Greetings. Glutathione is not an answer to pigmentation. Glutathione is often used by people as a drug for fairness; however for you i would not recommend that, you need to firstly see a qualified dermatologist and seek diagnosis for you pigmentation - whether its uniform or blothcy / involving all areas of face or patchy, etc. As per the diagnosis made - treatment needs to be initiated. Use a sunscreen daily- to prevent further worsening of pigmentation. Hope this helps
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Outdoor activities make our skin tan. The only option is to wear protective full sleeves clothing and cover as much as possible. Usage of a cap or hat and umbrella is encouraged. Skin already tanned can be treated with de-pigmenting creams and other oral medications. A good skin care regimen comprises 4 steps - cleansing, toning, moisturizing and sun block. Based on your skin type, a dermatologist will recommend you appropriate products.
GLutathione can supplement but cannot work alone.
Your dermatologist will decide a treatment plan for you after a consultation.