As we get older our eyes become vulnerable to a variety of insults that can cause irritation dry eye and structural problems. Applying lubricating eye drops several times a day can alleviate discomfort. The Brite Eyes III formula contains two proven lubricants (hydroxypropyl-methylcellulose and glycerin) that are FDA-approved for ophthalmic use without irritation. The Brite Eyes III formula also contains the antioxidant N-acetyl-carnosine which helps protect the active ingredients against glycation.A box of Brite Eyes III contains two individual vials that hold five milliliters each. This type of packaging in two individual vials reduces the risk of bacterial contamination. And having two vials also makes it convenient for consumers to keep Brite Eyes III readily accessible at home in the office purse or pocket ... or anywhere access to soothing eye drops is needed.Other products from HerbsPro