Valerie and Perry are traveling so here's a rebroadcast from last year.On today’s show we answer questions about…What is the PAO and why can’t I find it on makeup?Will natural collagen drinks or tablets improve the appearance of acne scars?Are anti-frizz serums detrimental to hair?What ingredients should you avoid to prevent milia?And we’ll have some chit chat about beauty science news...News:Personal grooming slips in the UKWhen is the right time to floss your teeth? Before or after brushing?Thank you to our patrons!  If you want to subscribe to the Beauty Brains and keep us commercial ad free, sign up on our Patreon Page.Follow us on Social Mediaon Instagram we're @thebeautybrains2018on Twitter, we're @thebeautybrainsAnd we have a Facebook page. Thanks again for listening and remember Be Brainy about your Beauty.Support the show (https://www.patreon.com/thebeautybrains?fan_landing=true)