When mineral supplementation becomes necessary, Angstrom Minerals Zinc is the best, most efficient way to get minerals to absorb into the cells of the body. Angstrom is a size, not just a brand name. It is smaller than the cells they need to get into, thus, the body does not have to work to breakdown or digest the minerals to be able to use them. No added ingredients, no preservatives or artificial colors or flavoring. It is sugar free, wheat free, dairy free, and peanut free and gluten Free, Non-GMO does not contain meat bi-products. This is an all-natural product suitable for vegans and vegetarians. This product is not tested on animals. No Expiration Date! Sticker on the bottle is a MANUFACTURING DATE! Product is packaged in a BPA-free plastic bottle.