... safety and no wound. The collagen is the main structure of skin. However, the collagen and elastin will reduceand lack ... the time flies ,Assustainment ofskin, flexibility fibre and collagen fibre would gradually lose elasticity andtensility.Sagging skin,or ... shrink instantaneously,and stimulates the renewal of collagen. In response, the collagen shrinks and remodels overtime, providing you with ...