can i apply vitamin c serum on my lips Is it actually crazy if it works? , One of the few serums that don’t break me out is from @dr.altheaglobal . read somewhere that Vitamin C help reduce lip pigmentation, so I put it to When to Apply Vitamin C
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W.PaickJ

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[DOI] [PubMed] [Google Scholar] Hermann D, Weber-Fahr W, Sartorius A, et al
