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Scored forOutcome alternatives
Dr. Mercola30 count • 30 servingsAvailable now$39.59$1.32 / serving4.6 · 196 ratings
82−5 pts from leader
#47 of 2320 ranked for nail strengthLeader · Life Extension, Life Extension, Hair, Skin & Nails, Collagen Plus Formula, 120 Tablets — 87
Why this ranks #47 for nail strength
- Evidence fitEvidence is still thin for Biotin and Keratin.
- Dose fit2 of 2 dosed ingredients land in the studied range. Biotin at 5000 mcg lands inside the studied 2500-5000 mcg window.
- Price / serving$1.32 per serving — high price tier for this outcome.
- AvailabilityIn stock across major retailers; 99% availability confidence.
- TrustMixed trust signals — ratings are positive but the base is limited.
The numbers · Nail strength
82
95
90
98
5000 mcgIn rangeinside the studied 2500-5000 mcg window
500 mgIn rangeinside the studied 500-500 mg window
20 mg
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