The short answer · Back pain
Take white willow bark for back pain. This is the one to buy.

Swanson Vitamins, White Willow Bark Extract, Standardized, 500 mg, 120 Capsules
4.8· 215 ratings· $0.06/serving
White Willow Bark 500 mg — inside the studied 400-1500 mg window
Of 125 products scored for Back pain, Swanson Vitamins, White Willow Bark Extract, Standardized, 500 mg, 120 Capsules ranks #1 with a DoseRank score of 80. White Willow Bark is the strongest evidence signal for this outcome.
Retailer links may be affiliate links. Rankings and placement are never paid.
The form“Why White Willow Bark — not Devil's Claw?”Evidence Strong evidence
White Willow Bark is the strongest evidence signal for this outcome.
- White Willow BarkThe pick
Strong evidence · 500 mg
Bark of Salix alba containing salicin, a precursor to salicylic acid; traditionally used for pain and fever, the herbal forerunner of aspirin.
- Devil's Claw
Moderate evidence · 1 g
Root of a South African shrub (Harpagophytum procumbens) containing harpagoside; used as an anti-inflammatory and analgesic, primarily for lower back pain and osteoarthritis.
The dose“Is the dose actually effective?”Dose fit 69
White Willow Bark at 500 mg lands inside the studied 400-1500 mg window.
White Willow Bark
Studied window 400-1500 mg · this pick 500 mg
The ranking“Why should I trust this pick?”Trust 60
Mixed trust signals — ratings are positive but the base is limited. Each product gets a DoseRank score blending clinical strength, evidence, dose fit, trust and value. Retailer links may be affiliate links — the scoring model decides placement, never payment from a brand.
- 125 products scored
- Never paid placement
- Evidence level: Strong · 92
- 44 brands
- 2 ingredients
The price“Can I do better than $0.06 a serving?”Value 73
$0.06 per serving — mid price tier for this outcome. Nothing else in this ranking costs less per serving.
Ready?
The #1 pick is $0.06 a serving.Swanson Vitamins, White Willow Bark Extract, Standardized, 500 mg, 120 Capsules — in stock at a tracked retailer.
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Swanson Vitamins, White Willow Bark Extract, Standardized, 500 mg, 120 Capsules ranks #1 for Back pain with a DoseRank score of 80. The score blends clinical strength, evidence, dose fit, trust signals and value across 125 products scored for this outcome.
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