Among them, concave scar is the most difficult scar to recover by itself, because this scar is formed by the damage of dermis, and skin cells are difficult to regenerate without intervention, so it is unlikely that concave scar will repair itself, so many women will try their best to remove it. In fact, concave scars can be improved by collagen filling.
Subcutaneous injection of collagen can improve facial defects caused by facial concave acne scars. 1/3 of human skin protein is collagen. When collagen for injection and filling is injected into the sunken skin defect, it is dehydrated, contracted and rearranged, which is similar to the natural collagen fiber in the body. After several weeks, fibroblasts, capillaries and fat cells in the body migrate and grow into collagen injection, and synthesize the user's own collagen, and finally form their own normal connective tissue to fill the skin defect and achieve the purpose of filling the concave acne scar.
The above is the effect of concave scar filling, which can be said to be very good, but we should choose a regular hospital for surgery and pay attention to postoperative recovery.