How to whiten your face

Applying sunscreen to block UV rays, using cosmetics with whitening ingredients, removing dead skin cells, providing sufficient moisture, taking vitamins, and consistently improving lifestyle habits (avoiding oily foods and instant foods, preventing stress, preventing sleep deprivation, taking antioxidant plants, and getting enough sleep are necessary) can contribute to whitening the face, but how do you get a fighting tan and how long does the whitening effect last?