Pick keratin
Stubborn grays?
TO DO:
TO DO:
Production of this key hair-building protein slows by nearly 30 percent once we hit age 50, leading to thinning. You can increase levels with a supplement that delivers an easily absorbed form of keratin that has been shown to reduce hair loss by 34 percent in just 60 days. To get the study-proven benefits, try Reserveage Nutrition
Keratin Hair Booster
(Amazon.com).