THICK HAIR + STRONG NAILS
The body’s production of keratin, a key hair protein, drops by 30 percent after age 50, causing strands to weaken and shed. Dr. Engleman’s solution: cynatine keratin, which reduces fallout by 34 percent in 60 days. Try: Reserveage Nutrition Keratin Hair Booster
($45 for 60 capsules, The Vitamin Shoppe stores).
BONUS: This supplement also contains biotin, which is proven to boost nail thickness by 25 percent in 2 weeks.