Kiki Quesada of Kikiz Cosmeticz pours handmade lip glosses into containers with a filling machine. She needs to clean the machine between each use to avoid contaminating the next batch. She takes ...

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To try it out for myself, I visited Nancy Samolitis, MD, board-certified dermatologist and cofounder of Facile Skin. At my first visit, I was nervous as hell. I had heard from all of my friends that ...