It's not difficult, but it takes persistence to succeed. First, ideologically, you can't just think about tightening your skin. In this case, a better solution is to exercise your chest muscles and make them swell up. Second, you should pay attention to your diet. You need to exercise your muscles now, and you can't go on an excessive diet. You need to eat more white meat (such as chicken, fish and beef, but don't eat pork). Causes of skin relaxation: 1. The fibers between cells degenerate with time, which makes the skin lose elasticity; 2. The loss of subcutaneous fat makes the skin lose support and droop; 3. Support the muscle relaxation of the skin and make the skin relax. 4. Other factors, such as gravity, heredity, mental stress, sun exposure, smoking, etc., will also change the skin structure, and eventually make the skin lose its elasticity and cause relaxation. Countermeasures: 1. Vitamin C: It can protect cells from ultraviolet rays, neutralize free radicals, help to synthesize collagen, and improve skin wrinkles and relaxation. 2. Collagen supplementation: By injecting, taking orally or using a cream supplemented with collagen, the skin's supporting ability can be significantly enhanced. 3. Sun protection: More than 90% of premature skin aging is caused by excessive sun exposure. 4. Balanced diet: Eat more fruits and vegetables containing antioxidants, such as carrots, tomatoes and grapes. And drink more red wine and tea to protect collagen in the skin. Avoid eating high-fat foods to avoid generating free radicals and accelerating aging. 1, about 10~ 15 ml pure milk and about 5 grams of pearl powder, a small glass bowl and a small spoon will do. Glass bowls and spoons are 90% for comfort.