As we age, the underlying supporting structure of our skin and the network of collagen fibres becomes less effective. The fat areas of the face become thinner and tend to descend under the effect of gravity. The body’s own Hyaluronic Acid (HA) lessens in quantity and since HA can absorb up to 1000 times its own weight in water the skin becomes less hydrated. The bony structure and muscles also lose volume. These effects all contribute to the appearance of aging which can be summarised as the presence of lines and wrinkles, skin laxity and a loss of volume which further emphasise the lines and laxity.