Ulta's 21 Days of Beauty Has Some Major Steals, Here Are 8 Days You Can't Miss

Did you know that September has the best deals on beauty products? Yup, me neither, but according to Racked, we're all in luck this month! RetailMeNot let the site in on the savings secret, and I have to say, some of the deals they uncovered are pretty exciting. Possibly the most thrilling for beauty geeks across the country? Ulta's 21 Days of Beauty.

The event, which began on Sept. 6 and runs until Sept. 26, features steals on tons of Ulta's most popular items. With a couple of tempting discounts each day, it's a good thing you don't actually have to get yourself to a store — many of the deals are valid on their website as well (some are even online only.) So no worries if you don't live in a city with an Ulta (my condolences), because there's always good ol' online shopping.

Nothing on Ulta's calendar catching your eye? There's plenty of other beauty sales to keep on your radar. Racked points out that Glossier is offering free shipping till the end of the month starting on Sept. 13, and Murad has a coupon code for 20 percent off from Sept. 10 to 16.

If you're looking elsewhere for deals, the "highest average savings and the most gifts with purchase [happen] during the second week of September," according to Racked's RetailMeNot intel. "For percent-off details, the fourth week in September is best."

Here are the eight deals from Ulta's 21 Days of Beauty that you can't miss. Time to clear some space in the makeup drawer.

Smashbox 24 Hour Photo Finish Eye Shadow Primer

If you've never tried an eyeshadow primer, here's your perfect opportunity — it's game-changing. Snag it for half off on Sept. 11.

(Smashbox 24 Hour Photo Finish Eye Shadow Primer, $20, ulta.com)

Butter London Lip Colors

All of Butter London's cult favorite lip colors are on sale for $10 on Sept. 12.

(Butter London lip colors, $18-$22, ulta.com)

Bliss Face Masks

Spa night, anyone? Several of Bliss's luxurious masks are on sale for $25-$28 on Sept. 14.

(Bliss face masks, $50-$56, ulta.com)

Too Faced Bulletproof 24-Hour Eye Liner

These are your ultimate lived-in liner look weapon. On Sept. 17, they're only $11.

(Too Faced Bulletproof 24-Hour Eye Liner, $22, ulta.com)

Clarisonic Cleansing Brush Heads

The mother lode for anyone who owns a Clarisonic skin brush — replacement brush heads are buy one, get one free on Sept. 18.

(Clarisonic Cleansing Brush Heads, $27-$30, ulta.com)

Laura Geller Balance-N-Brighten Color Correcting Foundation

Color correcting formulas are normally found in liquid foundations, but this powder palette gives a lighter coverage with all of the benefits. Plus, look how pretty! Buy it for $20 on Sept. 20.

(Laura Geller Balance-N-Brighten Color Correcting Foundation, $33, ulta.com)

Cargo Swimmables Water Resistant Blush

We've got tons of options for waterproof mascara and eyeliner, but a blush that won't fade the second you step into the heat? Maybe I can't wait for this till it goes on sale for $13 on Sept. 23.

(Cargo Swimmables Water Resistant Blush, $26, ulta.com)

Mally Beauty Face Defender

Word on the street is that this pore-perfecting priming product is downright miraculous. Try it for half off on Sept. 24 (I know I will.)

(Mally Beauty Face Defender, $40, ulta.com)

Images: Ulta Beauty/Facebook; Courtesy brands