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Birchbox InStyle
Credit: Courtesy Photo

Get ready for the ultimate beauty fix! We teamed up with Birchbox

, one of our go-to sites to discover the best new beauty products, to highlight our must-haves for the holiday season. And just a warning: the site is super addictive—you'll want to completely restock your makeup bag once you start clicking through our picks. Plus, we also filmed some exclusive how-to videos with Birchbox

editors, to help you look gorgeous at all of your upcoming holiday parties. First up, our beauty director, Kahlana Barfield, shows Birchbox editor Lorelei Orfeo how to create the ultimate messy-meets-chic updo. Watch below, and then head over to the InStyle Holiday shop on Birchbox.com

to shop all of the beauty favorites featured in the videos and more of our editor-tested essentials.

Plus, get 15% off your purchase of $60 or more on any full-size products in the InStyle Holiday Shop on Birchbox.com

, using the code BBINSTYLE15 at checkout through January 15. Happy shopping!

Offer Terms & Conditions: Spend $60 or more on full-size products in the InStyle Holiday Shop at birchbox.com/instyle and receive a 15% discount on your order when you enter code 'BBINSTYLE15' during the checkout process. Offer valid through January 15, 2014 at 11:59 p.m. ET. Please note that offer is only valid on purchases of full-size products, and can only be used once. Discount cannot be applied to subscription orders and may not be combined with any other offers.