Now’s the time to stock up on your favorite high-end brands or finally order that trendy mask — both for drugstore prices.

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.

Martha Stewart credits her glow to L'Oreal's True Match Lumi Glotion. It's only $14, and some reviewers say it's like a Charlotte Tilbury bestseller.