HA5 provides immediate and long-lasting skin hydration by using five forms of hyaluronic acid (HA) to smooth fine lines and wrinkles, improve texture, and support the skin's natural ability to replenish its own HA for overall health, resulting in softer, more supple, and rejuvenated skin over time, especially for dry or aging skin. This box is sealed and has not been opened. It states not for resale as I received it to review awhile ago.