I'm not too sure about how often the deals are, one of the other totalbeauty expert might have a better answer for you. 

But I searched around the bottom of the site and found this: 

"About Total Beauty Media

Founded in 2007 and venture-backed, Total Beauty Media, Inc. is a new media company that reaches 5 million women monthly. We publish TotalBeauty.com, a beauty tips and expert advice site that's like Yelp.com for beauty products, with 300,000 user-generated beauty product reviews spanning more than 46,000 beauty products. And we recently launched BeautyRiot.com, a beauty inspiration site for women in their 20s."