The ultraviolet transmittance of black umbrella is 5%, so compared with other umbrellas, black umbrella has the best sun protection effect.

Under the same umbrella material, the darker the umbrella color, the better the sunscreen effect. So black, navy, red, dark green and purple umbrellas are better than light blue, light pink and light yellow umbrellas.

Although the parasol has a certain effect, it needs to be protected by sunscreen.