Hyaluronic acid serum is a topical solution used for anti-aging and moisturizing that acts by plumping and preventing fine lines and wrinkles. It is a polysaccharid that is produced in the human body, with about 50 percent of it in the skin. It's also found in tissues and the eyes.
Hyaluronic acid is used in several different ways. It is injected as products such as Juvederm, it is used as topical serums, and it is used in moisturizers, creams and masques.
As of 2015, hyaluronic acid is replacing collagen as an injectable filler to temporarily disguise the signs of aging. Because hyaluronic acid attracts water like a sponge, it creates a plumper look and it lasts longer - from three to 12 months. And since it isn't a substance that the body doesn't recognize, it is less likely to cause an adverse reaction.
Using hyaluronic acid-based moisturizers and creams may not be effective, according to Beauty Editor, especially for women who live in a dry climate and already have dry skin. The hyaluronic acid molecule is too large to actually pass through the skin topically, so the only thing it actually can do is draw moisture to the skin and create a barrier to prevent it from leaving.