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Scored forOutcome alternatives
Irwin Naturals80 count • 13 servingsAvailable now$26.09$2.01 / serving4.7 · 663 ratings3 / day
84−8 pts from leader
#93 of 3810 ranked for nail brittlenessLeader · NeoCell, NeoCell, Grassfed Collagen Peptides + Vitamin C & Biotin, 270 Tablets — 92
Why this ranks #93 for nail brittleness
- Evidence fitType I Collagen has moderate human evidence for this outcome.
- Dose fitType I Collagen at 2500 mg is higher than the studied 2.5-5 g window.
- Price / serving$2.01 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.
Trade-offsValue for money trails the rest of this listPopularity trails the other picks here
The numbers · Nail brittlenessWhat's inside
84
96
67
98
2520 mcgThin evidenceevidence for this ingredient is still thin
2500 mgAbove rangehigher than the studied 2.5-5 g window
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