Hyaluronic Acid (“HA”) is a natural substance found in the human connective tissue whose function is to cushion and lubricate. It is also a humectant, meaning that it draws water from the environment into the skin, helping to keep it hydrated. It plays a critical role in the maintenance of moisture levels, nourishment of the skin’s matrix and improvement in the appearance of firmness, plumpness and smoothness. In short, HA is responsible for keeping the skin looking youthful and healthy, and if you want to look your best for as long as possible, I would recommend introducing this ingredient immediately.…