1. Vitamin C supplementation can protect cells from ultraviolet rays, neutralize free radicals, help synthesize collagen, and improve skin wrinkles and relaxation.

2. Supplementing collagen, by using a cream supplemented with collagen, the skin's supporting ability can be significantly enhanced, or eating more foods rich in collagen such as pig's trotters and tremella can also achieve the improvement effect.

3. Eat a balanced diet and 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.

4. With rubbing some vitamin E oil or essential oil, it can also improve the skin relaxation after weight loss.

5. Insisting on aerobic exercise is an effective way to enhance skin elasticity and contract and relax sebum. Sit-ups can effectively help tighten abdominal muscles. You can insist on doing sit-ups every day according to your own tolerance, and the effect is good.

Aerobic exercise refers to the physical exercise carried out by the human body under the condition of adequate oxygen supply. That is, in the process of exercise, the oxygen inhaled by the human body is equal to the demand, achieving physiological balance.

Simply put, aerobic exercise refers to any rhythmic exercise with long exercise time (about 15 minutes or more) and moderate or above exercise intensity (60% to 80% of the maximum heart rate). Aerobic exercise is a kind of continuous exercise, lasting more than 5 minutes, with spare capacity.

Whether it is "aerobic exercise" is measured by heart rate. Exercise with heart rate 150 beats/min is aerobic exercise, because blood can supply enough oxygen to myocardium at this time; So it is characterized by low intensity, fast pace and long duration. It is required to exercise for at least 30 minutes at a time and insist on 3 to 5 times a week. This kind of exercise, oxygen can not only fully burn (that is, oxidize) the sugar in the body, but also consume the fat in the body, enhance and improve the cardiopulmonary function, prevent osteoporosis, and adjust the psychological and mental state, which is the main exercise mode of fitness. Therefore, if you are overweight and want to lose weight through exercise, it is recommended to choose aerobic exercise, such as jogging and cycling.