If you sign up for their emails you will get updates on all their sales and promotions! I would say most of theirs last a few days and changes constantly! I do get A LOT of emails from them (which I don't mind) and am usually always informed on sales. From what I've seen every 2 weeks they usually come out with a new sale or promotion and I think they always have free shipping if you buy a certain amount. I love their products and they are definitely worth the cost.