Dr.Esther Glutathione direct film is one of the best skin whitening strips in Korea. It is a film-type face whitening supplement that has an effect comparable to an injection. It contains 31.25% of Glutathione, 7.81% of Vitamin C, 3.13% of Milk Thistle, 1.25% of Vitamin E, and 0.94% L-cysteine for the best face brightening & whitening effect. Glutathione is a combined structure of glutamic acid, cysteine, and glycine, and the amount stored in the body decreases with aging. The reason it is difficult to find out a noticeable change when simply ingesting a product is because of 'digestion'. The ingredients we ingest are broken down by digestive enzymes in the stomach and intestines and then absorbed through liver metabolism. When Dr.Esther Glutathione direct film is consumed, the necessary ingredients are absorbed directly through the oral mucosa without going through the digestive process. "Unlike skin with many natural barriers, the oral mucosa has a short length to reach blood vessels and is easy to access unlike the intestinal mucosa, which is difficult to apply." This face whitening product may help your skin tone to be brighter very effectively in a short period of time. This product is free of magnesium stearate, silicon dioxide, carboxymethyl cellulose, synthetic fragrance which is safe to consume without any worries.