Twitter peeps from the beauty world have given us the lowdown on some new beauty products this week, while Kourtney Kardashian started a new skincare regime, nail guru Sophy Robson showed us some incredible nail art and we're sending birthday wishes to Estée Lauder's Hilary Rhoda! Check out our gallery of the week in TwitPics and don't forget to follow us on Twitter for all the latest beauty news!