Sun exposure can cause skin aging, causing dark acne scars, freckles and age spots on the skin. The ultraviolet rays in the sunlight are invisible light, can penetrate the dermis layer, make the skin tan, and cause damage to lipids and collagen, causing photoaging of the skin and even skin cancer, which is cumulative, so it is called “age ultraviolet”. Not blocked by windows, umbrellas, etc.
SPF is a sign of UVB protection. The value of sun protection factor is suitable for everyone. SPF75 means that it can be extended by 75 times. Generally, it will stay in the sun for 20 minutes. Turn red, then after using 75+ whitening sunscreen, the skin wi II be red after 1500 minutes (25 hours)