Get Lippy

Carli, Sally and Bettina give you a run-down on what retinol is, what it can do, what you need to be VERY careful of when using it, and whether it's actually good as everyone says it is. Plus: Is butt care the new skin care?; How to pick a new mascara; and Reese Witherspoon tells Sally who her celebrity doppelganger is.Product recommendations and story links:Butt care products to get into:Bawdy Butt MasksSol De Janeiro Brazilian Bum Bum CreamMascaras explainedShort, stubby bristles for lift, length and definition: Benefit They're RealLong, fluffy bristles for volume and curl: L'Oréal Paris Voluminous MascaraBettina's current go-to for everyday: IT Cosmetics Superhero™ Elastic Stretch Volumizing MascaraBettina's current go-to for extra volume: Hourglass Caution Extreme Lash MascaraSally's current go-tos: Too Faced Better than Sex, NARS Climax, Dior Diorshow Pump 'n' Volume MascaraCarli's current go-to for everyday: Glossier Lash Slick (find a friend in the US to get it for you!)Carli's current go-to for&n