However, with consistent use, many people notice improvements in their skins hydration, texture, and overall appearance within a few weeks to a few months
They concluded current evidence of the skin-whitening effect of glutathione is still inconclusive however there is a trend that glutathione might brighten skin colour at sun-exposed area. A review specifically focusing on topical glutathione (and melanogenesis) found that though topical forms (e.g., GSH 0.5% vs 0.1%) had more effect, the studies were small, short term and lack longterm data
The shift happens faster in high heat and humidity, during hard work, or when youre not used to the environment
Khavinson, V., Razumovsky, M., Trofimova, S., Grigorian, R., & Razumovskaya, A
There was a bunch of smaller meals, five, 10 grams of protein