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Birchbox gives at least five beauty samples each month for $10. For every review I give, I get 10 points, which is equal to $1 in the shop. A six sample box like this one got me $6 back. I also shared my box on Facebook for an extra 10 points. That gave me a total of $7 back to redeem toward future purchases. You can read my detailed overview of the program for more information. Each month, you get a sample choice or you can select the guest editor box. For this box, I selected the stila mascara.