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Scored forOutcome alternatives
Natural Factors60 count • 30 servingsAvailable now$15.72$0.52 / serving4.8 · 7,282 ratings3 / day
90−1 pts from leader
#2 of 3136 ranked for joint functionLeader · 21st Century, 21st Century, Arthri-Flex Advantage® + Vitamin D3, 120 Coated Tablets — 91
Why this ranks #2 for joint function
- Evidence fitAKBA-Standardized Boswellia Extract and Glucosamine Sulfate lead the evidence here, backed by Hyaluronic Acid.
- Dose fit1 of 6 dosed ingredients land in the studied range. AKBA-Standardized Boswellia Extract at 160 mg lands inside the studied 100-500 mg window.
- Price / serving$0.52 per serving — mid price tier for this outcome.
- AvailabilityIn stock across major retailers; 99% availability confidence.
- TrustStrong trust signals — consistently high marks from verified buyer ratings.
Trade-offsPopularity trails the other picks hereValue for money trails the rest of this list
The numbers · Joint functionWhat's inside
90
97
80
99
160 mgIn rangeinside the studied 100-500 mg window
1501.5 mgAbove rangehigher than the studied 1500-1500 mg window
400 mgBelow rangebelow the studied 800-1200 mg window
600 mgBelow rangebelow the studied 1500-3000 mg window
15 mgBelow rangebelow the studied 80-240 mg window
30 mgBelow rangebelow the studied 500-2000 mg window
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