Proof.Fit

Hair & Nails

27 supplements analyzed and ranked by clinical evidence.

Supplements27

Supplement Evidence

Main Effects
Minoxidil

Hair density/count +

Thickness/diameter +

Irritation/safety -

Strong
1045
Iron

Anemia/ferritin +Hb

Iron stores +Hb

Strong
302216
Zinc

Dandruff/hair conditioning +1

Hair loss/zinc status

Moderate
180417
Whey Protein

Acne: lesions -38.6%

Psoriasis/Eczema: improved scores

Moderate
66217
Boron

Nail clearance +13-30%

Mycology negative, irritation

Moderate
1808
Silica

Hair strength/thickness improved

Nail brittleness reduced

Skin roughness lowered

Moderate
79615
Tea Tree Oil

Nail cure 80%

Low culture cure 18%

Moderate
479
Vitamin B5

Hair thickness/density improved

Hair fall ↓, density ↑

Moderate
708
Biotin

Hair shedding↓

Hoof growth +15%

Nail severity↓62%

Weak
657
Vitamin B7

Hair growth +11.9%

Nail severity -57%

Weak
7310
Lysine

Nail cure +82%

Plasma/nail levels 10-35x

Extra cure 73.3%

Weak
36818
Inositol

Hair growth/androgens improved

-1.4 nmol/L

Weak
27017
Omega-3 Fatty Acids

Less hair shedding

Hair density up

Weak
288519
Alanine

Wound infections, shorter stay

Hair density, less shedding

Weak
302818
Rosemary

Hair growth + itching

Antioxidant scalp protection

Weak
7715
Chromium

Hair: hirsutism -1.8

Nails: none

Weak
43411
Vitamin C

Hair improvement +12.5%

Patient-rated improvement +16%

Weak
151318
Vitamin B9

Hemoglobin ↑

Memory/attention ↑

Weak
275814
Fish Oil

Hair density ↑, shedding ↓

Hair diameter ↑

Weak
290520
Iodine

Paronychia severity -15%

Pain/QoL improved

Weak
160217
Hyaluronic Acid

Hair density +91/ncmΒ²

Wrinkle depth, evenness

Weak
131813
Collagen

Hair growth +1.01

Tolerability unchanged

Weak
295114
Essential Amino Acids

Hair growth +1.01

Good tolerability

Weak
262919
L-Methionine

Hair outcomes +1.01

Wool traits, methionine

Weak
34317
Fo-Ti

Melanin ↑36.9%

TYR/Ξ±-MSH ↑

Weak
22
Vitamin E

Lice cure +34%

Reinfestation reduction

Weak
181517
Selenium

Cure rates +90.9%

Well tolerated

Weak
69617