Office Hours: Retinols, Acne Treatments Losing Effectiveness & Exfoliation

Hello GW readers! For those of you who are unfamiliar with my blog Green Derm, Office Hours posts are where I answer reader submitted questions. I thought it might be worthwhile to move it here in the spirit of involving a new audience in these conversations. So regular readers, welcome to our Office Hours’ new home. Without further ado… I’ve read…


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