HA5 contains 5 types of hyaluronic acid; it hydrates your skin instantly, and lasts for up to 8 hours.

Hyaluronic acid is a hydrophilic (water-loving) substance found in the skin, which holds in moisture, keeping skin healthy, resilient and supple.

As you get older, your natural hyaluronic acid decreases and your skin loses its ability to retain moisture. By the age of 50, you have lost about 50% of the hyaluronic acid that you had at age 20.