Hair & Nails
27 supplements analyzed and ranked by clinical evidence.
Supplement Evidence
Hair density/count +
Thickness/diameter +
Irritation/safety -
Anemia/ferritin +Hb
Iron stores +Hb
Dandruff/hair conditioning +1
Hair loss/zinc status
Acne: lesions -38.6%
Psoriasis/Eczema: improved scores
Nail clearance +13-30%
Mycology negative, irritation
Hair strength/thickness improved
Nail brittleness reduced
Skin roughness lowered
Nail cure 80%
Low culture cure 18%
Hair thickness/density improved
Hair fall β, density β
Hair sheddingβ
Hoof growth +15%
Nail severityβ62%
Hair growth +11.9%
Nail severity -57%
Nail cure +82%
Plasma/nail levels 10-35x
Extra cure 73.3%
Hair growth/androgens improved
-1.4 nmol/L
Less hair shedding
Hair density up
Wound infections, shorter stay
Hair density, less shedding
Hair growth + itching
Antioxidant scalp protection
Hair: hirsutism -1.8
Nails: none
Hair improvement +12.5%
Patient-rated improvement +16%
Hemoglobin β
Memory/attention β
Hair density β, shedding β
Hair diameter β
Paronychia severity -15%
Pain/QoL improved
Hair density +91/ncmΒ²
Wrinkle depth, evenness
Hair growth +1.01
Tolerability unchanged
Hair growth +1.01
Good tolerability
Hair outcomes +1.01
Wool traits, methionine
Melanin β36.9%
TYR/Ξ±-MSH β
Lice cure +34%
Reinfestation reduction
Cure rates +90.9%
Well tolerated