If you purchase an independently reviewed product or service through a link on our website, WWD may receive an affiliate commission. Mark your calendars and set your alarms, beauty lovers, the Sephora Beauty Insider Sale begins tonight! And we’re here to tell you that the savings this year are bigger than ever. Starting tonight at 11.50pm EST through April 11th, you’ll be able to shop hundreds of markdowns on the most coveted skin care, hair care and makeup brands, plus plenty of other beauty bits and bobs. We know, this Sephora sale sounds too good to be true, but trust us, we’re very serious when it comes to our beauty sales, and this is not one to miss. What is the Sephora Beauty Insider Sale? The Sephora Beauty Insider Sale, also known as the Spring Savings Event, kicks off tonight for Beauty Insiders everywhere. You can shop the Sephora sale online and in-stores tonight until April 11. There is a slight catch: To access the super steals, you must be a Sephora Beauty Ins...