Vitamin c has a good skin care and whitening effect. It is said that lemon is extremely rich in vitamin C, but the fact is not that the content is not as high as strawberry and kiwifruit.

What's more, usually a large slice of lemon can be soaked in 1L of light lemonade. If you brew twice more, you can soak 2-3 liters of water, which is enough for one person to drink water a day.

However, a lemon only contains more than 20 mg of vitamins, and the daily intake of vitamin C for ordinary adults in China is 100 mg. A slice of lemon with more than 20 mg has really negligible whitening effect. Want to whiten, or sunscreen first. In other words, drinking lemonade can't achieve whitening effect.

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