Uta 21 Days of Beauty is exactly what you'd think it is - a three-week-long sale. To make things more exciting, new items are discounted with each new day - some of them only for 24 hours, others for up to a week. High-end brands such as MAC and Clinique are always included, as are some affordable favorites like NYX and Maybelline. The sales are each spring and fall - and are announced in advance through social media.