Originally published on Groupon website by Ashley Hamer on 8/12/14.

Ever since Adam Sandler debated the virtues of shampoo vs. conditioner in the movie Billy Madison, society has wondered: which is better? If you asked Dillon Spranley, an educator at Toujours Spa & Salon in Chicago’s Andersonville neighborhood, she would say conditioner. Sort of.

To find out which beauty products are the most important and therefore deserve more of an investment, we talked to Dillon and to Leah Chavie, the owner of Leah Chavie Skincare Boutiquein Park West. They gave us advice in three different product categories—haircareskincare, and makeup—about what to skimp on and what to splurge on.

Rest of article at http://www.groupon.com/articles/where-is-it-ok-to-cut-corners-in-your-beaut…