What is Hyaluronic Acid (HA)?

Water Drop

Hyaluronic acid (HA), a naturally occurring molecule (glycosaminiglycan), is found in high concentrations in the skin, eyes, joints and between individual cells. A natural humectant, HA molecules can hold up to 400 times their own weight in water. This ability to bind and retain moisture allows HA to help regulate water balance, provide structural support to tissues and act as a lubricant.

HA plus the connective tissue molecules collagen and elastin - known as ground substance - are the structural components of the epidermis and the dermis. These connective tissue molecules form a sponge-like matrix, the spaces of which are filled with HA and water. This HA-water complex ensures sufficient hydration so that normal skin function and cell turnover can occur.

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