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L-ascorbic acid operates at a very low pH (typically 2.5-3.5), while copper peptides are only stable between pH 5.5 and 7.0 Milk Thistle Choose Your Bundle:Single 4oz Thoughts on Mirror Skin copper peptide serum? [Product Question] [Anti-Aging] : r/SkincareAddiction https://lookaside.fbsbx.com/lookaside/crawler/media/?media_id=122111617238975548
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