Pump, pump, pump it up. Did you clap and shout to the beat of that cheer back in high school, too? Rah-rah ways aside, for last week's Beauty Mark It challenge, I asked you to show me how you pump up your hair's volume by reviewing your favorite/not-so-favorite volumizing shampoos.

I loved reading about your picks, and here are three featured reviews:

• Team member Myystque wasn't feeling the love for Paul Mitchell Extra-Body Daily Shampoo ($8.49). "I hate to say this, since I love the Paul Mitchell brand's ethics," she confesses. "But this shampoo was horrible. It made my hair feel clumpy and thick, not voluminous. If anything, it felt worse when dry. The product was so disappointing I took it back to the store for a refund."
• A few of you really liked Aveda Pure Abundance Volumizing Shampoo ($13.99). Luluroller says, "I've tried a ton of volumizing shampoos and this is always my go-to. Paired with the conditioner of the same name, this is guaranteed volume."
• Bumble & Bumble's Thickening Shampoo ($18.99) was a hands-down favorite. "This is sort of my standard for thickening shampoo for fine hair," says Lscrabtr. "After using it, my hair hangs better, even without blow-drying or styling. If you do choose to use a blow-dryer or other styling tools, the results are dynamite. While I wouldn't expect miracles from a shampoo, this definitely delivers, without that static-y lightheadedness you can get from other products. A major drawback is the price and the availability."