This deal has ended.
Students can get the Proactiv Plus Deluxe System for $29.95 with free shipping, the best price we could find by $5. Even better they include the refining mask for free, which is $8.25 plus shipping at Amazon. This skincare system is well reviewed everywhere we could find (a near-perfect rating from 72 reviews here). There is no sales tax (except CA, IA, NC, and PA).