TwinLab Mega L-Glutathione Caps are easier to swallow and assimilate. They also contain no borders, coatings or colorings. And they are free of the most common allergens such as corn, soy, yeast, rice, barley, wheat, lactose (milk sugar), and all milk, citrus, fish, and egg products. No added sugars, salt, colorings or preservatives. Packaged in a glass bottle for maximum stability, quality, and freshness. This product is manufactured at our own state-of-the-art facility.