To use the Sephora coupons on their website, you need to meet the conditions:

•  The items you choose must meet all coupon requirements as explained in the Terms and Conditions.

• The coupon has not expired. 

• The seller uses the Sephora checkout system or a customized checkout system that accepts the coupon.

To avoid this problem, you should check out carefully Sephora promo code before that promo code could be expired, some promo codes are tied to a minimum purchase, a first-time purchase, or tied to geography, and other reasons.

It depends! Normally, the percentage that you can save with that Sephora Coupon will be shown right on the page, so you can see if it is applied sitewide or not. However, once you are not sure, try it right on their's products you want to buy.

Most Big Discount Events of the year witnessed a vast number of coupons from Sephora released. Especially, on federal holidays such as New Year’s Sale, Thanksgiving, Christmas... or on other important days such as Valentine’s Day, Easter, and Father’s Day..., customers also can buy at Sephora with numerous coupons.

It is hard to see a Sitewide Discount of 50% from Sephora on normal days. It's easier for you to shop on federal holidays or important days of the year. New Year’s Day, Thanksgiving, Christmas, Military Day...are recommended.