1. Take an umbrella and wear a mask. As long as you can persist, the naked eye will turn white. I know an old Korean lady who always wears an umbrella, a mask and sunglasses when she goes out, and her skin is unkempt. ) 2. Ordinary nicotinamide is 10% essence. If the skin is tolerant enough, just use this one directly. Very cheap! (can also inhibit oil production, shut your mouth) 3. Neutrogena alcohol+nicotinamide essence, online celebrity whitening usage, as long as your skin is durable enough and whitening speed is fast. 4. Eat stewed tremella and buy a small stew pot for the dormitory. Tremella nourishes yin and moistens the lungs, and the lungs control fur and the skin is white and smooth. 5. After whitening cream, don't be afraid of expensive, buy a sample!