Neuage Glutathione & Vitamin C Whitening Soap 100gNeuage Glutathione & Vitamin C Whitening Soap Skin Brightening Bar 100g Neuage Glutathione & Vitamin C Whitening Soap by Derma Tecno is a dermatologist tested soap bar formulated with multiple skin supporting ingredients to help brighten, even, and nourish skin for face and body use. Key Ingredients Glutathione: Antioxidant that helps fight free radicals and supports a clearer, brighter complexion. Vitamin C: Helps fade the appearance of dark spots