With all the amazing technology currently popping up in the beauty industry, it’s hard stay tuned in to what’s new. Heck, the lingo even confuses us from time to time. Below, we break down the latest talk of the town. KATE HELFRICH AND SARA BACHIS, SEPHORA COLLECTION PRODUCT DEVELOPMENT THE BUZZWORD: Serum foundation. THE BREAKDOWN: Compared to creams or liquids, serum foundations contain fewer thickening agents, which means that they are lightweight and have a higher concentration of active ingredients and pigments. Because of this, you use less serum foundation for your desired coverage than you would with a liquid formula. THE BEST BETS: SEPHORA COLLECTION Teint Infusion Ethereal Natural Finish Foundation A moisturizing foundation with a barely-there finish. Dior Diorskin Nude Air Serum SPF 20 With its sheer finish, this designer foundation screams luxury the second you touch it. NARS All Day Luminous Weightless Foundation An oil-free, full-coverage fo...