Since becoming the breakout star of "The Big Bang Theory," Kaley Cuoco has undergone multiple hair eras; from blond to ...

From shades of red to bronde, colorists Tracey Cunningham, Cass Kaeding, Sierra Kener, and Laurie Heaps break down he hair colors you'll be seeing everywhere.

Since products for hair growth and thinning hair vary wildly in efficacy, we researched and tested over 40 shampoos for thinning hair to find the best for various needs and conditions.