As we age, our skin begins to lose hyaluronic acid, which is responsible for maintaining moisture. It is this moisture that helps hydrate the skin and create facial volume. The decreased production of hyaluronic acid and collagen over time causes a loss of firmness, volume, and elasticity, often resulting in a sagging or more wrinkled facial appearance, and the visible signs of aging becoming more noticeable. Some common examples are the sagging you may see in your cheeks, lower face, jaw-line, and chin. Your skin may also appear thinner and look less smooth due to prominent lines and wrinkles.