A lipid is a naturally occuring fat within the skin that forms the link between cells and ensures water retention within the skin barrier.

 There are three types of skin lipids: ceramides (responsible for holding the skin's structure together and hydrating), cholesterol (improving skin elasticity), and fatty acids (maintaining balance in the skin barrier). Lipid production slows as we age, leading to dehydration and ultimately loss of elasticity and the appearance of fine lines and wrinkles. Lipids in skincare products help support the retention of moisture and prevent signs of aging. Look out for products that contain a mix of lipids and supplement with essential fatty acids in your diet (from foods such as salmon, trout, walnuts as well as chia and flax seeds) for best results.