o_Owtf
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I was surprised to hear this because I've only ever heard of Latisse (which is not typically called a serum) causing these side effects, and I thought I'd be safe trying GrandeLASH-MD. I assumed that this product had the same safety profile like The Ordinary (peptide-based) because both are non-prescription and described using the word "serum." However, both Latisse and many other, non-prescription alternatives, use roughly the same prostglandin (not peptide-based) mechanism to promote hair growth, which is what causes the side effects.