1, the cream is to isolate ultraviolet rays and avoid damage to the skin.
2, isolation cream is to isolate external infringement, not internal isolation. In fact, life experience tells us that when we use cosmetics, we will sweat faster, but we will excrete water instead of fat. As long as we drink water, we will regain our weight.
3. If you want to raise your body temperature through isolation, it will cause collapse, endocrine disorders and other injuries.
Cream is an important thing to protect the skin. Isolation cream does have an isolation effect on ultraviolet rays, and its essence is sun protection. The sunscreen used in sunscreen is the same as that used in sunscreen, which is usually divided into two categories: organic sunscreen and physical sunscreen.
Organic sunscreen and ultraviolet rays can turn ultraviolet rays harmful to the skin into harmless ones; Physical sunscreen (titanium dioxide, zinc oxide, etc. ) mainly rely on the principle of reflection to block ultraviolet rays.
Reference: Baidu Encyclopedia "Cream"