Sweating with sunscreen will make the sunscreen effect weaker and weaker, so remember to apply it regularly. Some components in sunscreen products are photosensitive, and their sunscreen effect will decrease after exposure for a period of time; There are also many sunscreen products. Due to the dilution of sweat and other reasons, the sunscreen effect will become weaker and weaker, and it can only last for a few hours.

Sunscreen stays on the skin surface, and some of it will be lost with sweating. It is best to replenish it every 2 ~ 3 hours. Besides the face, other exposed parts such as the neck and arms can also be coated with sunscreen. The sun is strong in summer, but ultraviolet rays are everywhere. You should wear sunscreen all year round, even in rainy days, especially those who often work and move outdoors.

Extended data:

About sun protection:

1, you can't just rely on sun protection.

Other preventive measures can not be ignored. For example, clothes can reduce the risk of sunburn by 27%; It is also important to stay in the shade, especially for babies, which can reduce their risk of sunburn by more than 30%; Wear sunglasses to prevent ultraviolet rays; Choose to go out in the morning or evening when the sun is low; You'd better check the ultraviolet index before going out.

Don't forget to supplement vitamin d.

Sunlight can stimulate the body to produce vitamin D, and sunscreen seems to inhibit this effect. Vitamin D can strengthen the bones and immune system and reduce the risk of other diseases such as breast cancer, colon cancer, kidney cancer and ovarian cancer. Breast-fed babies, people with darker skin and people with limited sunlight are at the greatest risk of vitamin D deficiency.

People's Network-Sunscreen 6 Misunderstanding, Literacy, Sunscreen Leakage, Three Dead Corners, All in vain.

People's Network-Do you really protect yourself from the sun? Dermatologists teach you how to use sunscreen.