First of all, I want to tell you that cream can't protect against radiation. Computer radiation is the slogan of many sunscreen now, but these are all lies. Most of the computer radiation belongs to low-frequency radiation, with a wavelength of about 6.5cm, while isolation cream and sunscreen cream are mainly aimed at ultraviolet rays with a wavelength of 0.0 1-0.40 micron. It can be seen that the cream has no effect on computer radiation at all. Therefore, the cream is just a sunscreen with a touch-up effect.

At the age of 20, I recommend you to use the sunscreen of Bomei and ZA. These two creams have sunscreen value and can also modify skin color. The price is also below 70, which suits your age.