[product question] Has anyone expierienced sagging skin after using a snail mucin product?

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I just bought the COSRX snail mucin power essensce and I was wondering about other peoples experience with that or any other snail mucin product. So most snail mucin have copper peptides, and some people experience sagging skin and more free radical damage after using it. Since the COSRX has such a high percentage of snail mucin means there is some copper peptides in it too. Has anyone experienced any bad side effects from the COSRX snail mucin power essence? Or any other ones for that matter?Thank you :) I posted this in r/Skincare-Addiction too
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Submitted by Ok_Concern5444