Subscribers’ Q&A and Discussion: What’s the effective level of ingredients? And thought about using tiny amounts

Amber is on fire this week! In Potential duplication of L’Occitane Immortelle Divine Cream (part four), she shares: I have to agree with the rant about products that contain tiny bits of this and that. I always, always wonder what the effective level is of each ingredient? I know some things are very effective at very low…