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Scored forOutcome alternatives
Reserveage Beauty60 count • 30 servingsAvailable now$40.27$1.34 / serving4.5 · 1,112 ratings
82−6 pts from leader
#55 of 2187 ranked for nail strengthLeader · Life Extension, Life Extension, Hair, Skin & Nails, Collagen Plus Formula, 120 Tablets — 88
Why this ranks #55 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 3000 mcg lands inside the studied 2500-5000 mcg window.
- Price / serving$1.34 per serving — high price tier for this outcome.
- AvailabilityIn stock across major retailers; 99% availability confidence.
- TrustSolid trust signals from buyer ratings, with room to grow.
The numbers · Nail strength
82
95
80
97
3000 mcgIn rangeinside the studied 2500-5000 mcg window
500 mgIn rangeinside the studied 500-500 mg window
14 mg
1.7 mg
18 mg
2 mg
20 mg
15 mg
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