Hyaluronic acid is a must-have in your skin routine. The primary function of hyaluronic acid is to retain water to keep your skin hydrated at all times, so you can think about it as a BIG drink of water for your tissues.
This substance is the holy grail for supple, youthful skin. In fact, one gram of hyaluronic acid can hold up to six LITERS of water! Hyaluronic acid is the perfect example of how limited-ingredient skincare can produce real results.