左旋VC还可促进胶原蛋白的合成，使皮肤紧致有弹性，重现迷人光彩。
L-Ascorbic acid (VC) also can accelerate the synthesis of collagen, to make your skin tighten and elastic, and represent the charming luster.
左旋VC还可促进胶原蛋白的合成，使皮肤紧致有弹性，重现迷人光彩。
L-Ascorbic acid (VC) also can accelerate the synthesis of collagen, to make your skin tighten and elastic, and represent the charming luster.
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