Blame it on the Disney princesses, the Kardashians, whomever you want—almost every woman wants thicker, fuller hair. And it's often the case that your shampoo and conditioner just don't move the needle.
That's where healthy beauty foods come in, and a spate of healthy supplements—turbo loaded with horsetail and biotin to iodine—aimed at giving you the hair-tossing power you've seen on TV. Just note "hair supplements have not been independently scientifically studied, and results from companies' own studies are dubious," explains cosmetic dermatologist Elizabeth Tanzi, MD.
Even so, health coach and Eat Pretty author Jolene Hart has seen improvements in women who've taken hair supplements over six months (the time it takes your hair to grow out). We got her take on eight top-of-the-market hair supplements. And while none will make you go from limp to lush overnight, in time you might just get a little bit closer.