Reduced Glutathione Pure Encapsulations Numbuzin No.5+ Glutathione Vitamin Concentrated Serum 30ml MRS. numbuzin No.5 Glutathione Vitamin Concentrated Serum Dull and uneven skin tone Dark spots & post acne marks Brightening and glow boosting Skin that looks tired or Glutathione acts as an important antioxidant in your body. This means it helps combat free radicals aka molecules that can damage your body's cells. Glutathione levels in the body may be reduced [Numbuzin] No.5+ Glutathione Vitamin Concentrated Serum 30ml