• Ideal for products requiring complete blockage or reduced exposure to light. • Opaque bag of polyethylene film made from pigmented resins. • Black color is an integral part of the bag and is not a printed layer. • Provides maximum protection for samples that are sensitive to light. • Great for pharmaceuticals, seasonings, flavors, food supplements, vitamins, and many other liquid or solid products. • FDA Approved. Sterilized with ethylene oxide.