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What’s the difference between chemical and physical sunscreens, and can you give me specific ingredient examples?

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  • “What’s the difference between sunscreen and sunblock?”
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  • “Which of the dermalogica exfoliants can be used during pregnancy?”
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  • “What is a good natural exfoliant for the face using herbs and clays that will leave skin smooth and glowing that I can make at home?”
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  • “There seems to be a strange new trend going on with non-toxic Elmer’s glue - people are using it as a mask to remove blackheads! I imagine that this is very drying and stripping to the skin. What else can you tell me to help me guide people in the right direction with this trend? They find that it's cheap and effective. I'm kind of alarmed!”
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  • “When a product claims to stimulate collagen production, how exactly does it do that?”
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  • “What is your view on Microdermabrasion versus fruit acid/chemical exfoliants?”
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  • “Can I use MultiVitamin Power Recovery® Masque during pregnancy?”
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  • “I've heard that Accutane permanently dries skin, even once the treatment is complete. Is this true? And if it is, how does this happen?”
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  • “I’m looking to offer Brazilian waxing treatments. Do I need to carry separate insurance for this?”
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  • “I have a gluten allergy. Do I need to make sure my skincare products are gluten free, too?”
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