Topical vs Oral Glutathione: Which Is Better for Skin? Glutathione is a natural antioxidant your body makes, and it can influence melanin production which is why its sometimes marketed for skin brightening., Oral supplements are mostly broken down in Before you spend money on glutathione, read this first. Topical, oral, injectable what actually works and what's just marketing? #funskincare #funingredientsinfographic101 What Is Glutathione? Health Benefits, Risks, and More