Skin laxity is a manifestation of skin aging. As we age, subcutaneous collagen decreases, subcutaneous fat and even bones atrophy and become less skin laxity and wrinkles. This condition can be improved by the available technology. If it occurs in the face, especially in the cheeks, jaws can be used ultrasonic knife, Thermage, radio frequency and other technologies to play a lifting and tightening effect. If it occurs in the forearms or waist and abdomen, the use of ultrasound and radiofrequency will have an improvement effect. If in the face, depending on the situation, the buried wire or thread sculpture method can be used to lift the sagging skin, if necessary, with hyaluronic acid filling, can also receive better results. Patients should maintain a positive and optimistic attitude and avoid mental tension. In terms of diet, it is important to avoid overeating, which will increase the burden on the gastrointestinal tract and lead to excess nutrition and affect the normal metabolism of the skin. Long-term direct sunlight should be avoided. Long-term ultraviolet radiation will also produce certain damage to the skin and promote skin aging. Ensure sufficient good sleep and eat more food rich in collagen and high quality protein.