"Others are taking hair follicles out of human scalp and growing them with dermal papilla cells," Cotsarelis says. "If they grow in culture, you might be able to recombine them with skin cells and form new follicles. This would let you expand the number of follicles you get for a hair transplant. This may not be that far off -- five to 10 years, maybe. There's very good evidence you will be able to do that."
4. Tinted dry shampoo. Camouflage spots where you’re seeing more scalp than you want to (your hairline, a widening part, a thinning crown) and add volume with a colored dry shampoo (try Orlando Pita Color Boost Dry Shampoo in Light or Dark Tones, $22). But be sure to give your scalp a vigorous shampoo during your next shower — dermatologists recommend keeping your scalp free of styling products so you’re not clogging already taxed pores.
While diet alone won’t save your hair, there may be some truth to the old adage that you are what you eat. “You’re not going to have the healthiest hair if you’re living off doughnuts, because being nutrient-deficient weakens strands and makes them more prone to breakage,” says Denise Kernan, owner of DK Hair Techs, Inc., a member of the International Society for Hair Restoration Surgery, and a hair transplant technician who has worked on everyone from senators to sports stars to actors to mafia guys (she won’t name names to protect the privacy of her clients).