Member exclusive Q&A: What’s a cosmeceutical? What’s an active? Part two – categories

We spent a great deal of time trying to define the idea of “cosmeceutical” and “active” in this post, so let’s get to the next parts of the questions posed in my October Q&A on Patreon. Michelle asked: I am wondering what exactly is considered an ‘active’ ingredient, and if there is a maximum percentage recommended for…

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