vSilk pillowcases are known as "beauty pillowcases". Silk pillowcases are very smooth and cool. When you sleep, no matter how you squeeze your friction, your face is not prone to wrinkles. Because silk contains 18 kinds of essential amino acids, serine has nourish the skin and prevent skin from aging. It can clean the skin and increase the vitality of skin cells. One of the portable equipment of foreign models is a pair of silk pillowcases.
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