The most popular dermal fillers used today are made using hyaluronic acid based products. Hyaluronic acid dermal fillers are non-permanent, meaning that they are reabsorbed into the body over time. Hyaluronic acid is a naturally occurring substance that is found in body tissues, and it has been used safely in general medical applications for several decades. Throughout the ageing process we lose some of the skin’s ‘building blocks’ such as collagen and fat, which are the materials that prevent to skin becoming loose and saggy, allowing fine lines and wrinkles to appear. As we age, our skin becomes thinner and more visible lines and wrinkles start to appear. The facial bones and fat pads begin to shrink accelerating the creation of folds and deep wrinkles. The dermal filler acts as a replacement for the lost fat and helps to restore our skin to its former youthful appearance. The material is carefully injected into different layers of the skin depending on the type of filler selected and the patient’s needs. Dermal fillers are available in different thicknesses and viscosity that match to the patients needs. The thicker products are generally reserved for deep folds or wrinkles, whilst smoother product is used to plump out fine lines and wrinkles.