Top pick · DoseRank
Why this ranks #1 for back pain
#1
Frontier Co-op, Pau d'Arco Bark, Cut & Sifted , 16 oz (453 g)
Frontier Co-op$0.06 / serving4.7 · 2,898Available now
Why this ranks here
- Evidence fitWhite Willow Bark is the strongest evidence signal for this outcome.
- Dose fitWhite Willow Bark at 2.2 g sits below the studied 400-1500 mg window.
- Price / serving$0.06 per serving — low price tier for this outcome.
- AvailabilityIn stock across major retailers; 99% availability confidence.
- TrustStrong trust signals — consistently high marks from verified buyer ratings.
Trade-offs
Popularity trails the other picks here
The numbers
85
88
91
86
2.2 gBelow rangebelow the studied 400-1500 mg window