Due to the different distribution of human genes, fat and muscle, as we age, the water content of human skin plus decreases, the dermis becomes thinner, the amount of subcutaneous loose fat decreases and the muscles atrophy thus leading to sunken cheeks. Also genetic factors, incorrect breathing patterns and improper bite can all contribute to the absence of a chin. Hyamax® Volumizer fillers are mono-phasic with crosslinking technology, is a three-dimensional network structure. Excellent cohesion enables no tendency of the filler to disperse and flow in water and body fluids, achieving higer stability abd the best volumizing and conturing, perfect for filling in hollowed cheeks and chin.