Is a higher dose always better?

No. Dose-fit rewards landing inside the range studied for the outcome — over-dosing (common with melatonin) or under-dosing both lower the score. The goal is the effective dose, not the biggest number.

What does the Value score mean?

The Value score compares a product's price per serving with clinically relevant products ranked for the same outcome. A score of 50 is the typical price; above 50 means better value than typical, while below 50 means the product costs more than typical. It is a 0–100 value signal, not a percentile.

Why is the cheapest product not #1?

Cost is only one input. The cheapest pick here is a citrate form with weaker absorption and a stock-risk flag, so it leads on Value-for-cost but trails on the composite that also weighs evidence, dose fit and availability.

Are these affiliate links?

Retailer links may be affiliate links and DoseRank may earn a commission. Rankings and placement are determined by the scoring model only — never by payment from a brand.

Is this medical advice?

No. DoseRank summarizes evidence to help you choose; it is not a substitute for a clinician, especially if you are pregnant, breastfeeding, on medication, or managing a health condition.

Reduce back pain

What this outcome means

Back pain is the ache, stiffness, or sharp twinge along your spine that can make sitting, bending, or lifting a daily negotiation. On DoseRank it maps to a defined health outcome built from human studies on pain-intensity scores, disability indexes, and functional mobility measures – data sourced from open sources and specialized resources. DoseRank is not medical advice.

Who it's for

Lower-back strainA nagging ache low in the spine after sitting or lifting.

Chronic back painDiscomfort that has lingered for months without easing.

Desk-bound postureLong hours hunched at a screen that stiffen the back.

Stack buildersAlready taking supplements such as White Willow Bark and want the dose right.

Evidence level

92Strong

White Willow Bark – has strong public evidence. DoseRank looks at both evidence quality and formula fit. A DoseFit Score of 69 means this product's ingredient forms and doses are close to what was used in the studies behind this ranking - DoseRank weights each product ingredient.

Best ingredients

White Willow Bark is the best supported ingredient signal for this outcome.

Dose partly matchedDoseFit 69

Scores reward products dosed inside or above the studied range, not just the right ingredient. Examples: In range: White Willow Bark 500 mg vs 400-1500 mg.

Processed

125

Available

125

Ingredients

Brands

Coverage

100%

How to read the scores

What every metric means

Each score is 0–100. Higher is better for every metric below.

CompositeThe overall DoseRank score — a weighted blend of clinical strength, evidence, dose fit, trust and value.Higher is better

ClinicalHow strongly the formula's ingredients and doses match what clinical studies used for this outcome.Higher is better

EvidenceHow much published human research backs the formula's key ingredients for this outcome — both how many studies exist and how strong they are.Higher is better

ValueHow the price per serving compares with similar products for this outcome — 50 is the typical price, higher means better value for your money.Higher is better

TrustHow well customers rate this product, with extra weight given to ratings backed by a large number of reviews.Higher is better

PopularityHow strongly this product sells compared with the other ranked products for this outcome.Higher is better

This legend covers the scores on this page — for data sources, scoring weights, and limits, read the full methodology →

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Get a personal report

A saved, shareable breakdown: your matched products, dose math, interaction flags to discuss with a clinician, and a price-tracked stack you can revisit.

Questions

Frequently asked

Each product gets a composite score blending clinical strength, evidence, dose fit, trust and value. The #1 on the DoseRank tab has the highest composite; the other tabs re-rank the same products by Value, Trust, or Popularity. Placement is never paid.

Reduce back pain

What this outcome means

Who it's for

Lower-back strainA nagging ache low in the spine after sitting or lifting.

Chronic back painDiscomfort that has lingered for months without easing.

Desk-bound postureLong hours hunched at a screen that stiffen the back.

Stack buildersAlready taking supplements such as White Willow Bark and want the dose right.

Evidence level

92Strong

Best ingredients

White Willow Bark is the best supported ingredient signal for this outcome.

Dose partly matchedDoseFit 69

Scores reward products dosed inside or above the studied range, not just the right ingredient. Examples: In range: White Willow Bark 500 mg vs 400-1500 mg.

Processed

125

Available

125

Ingredients

Brands

Coverage

100%

Relevant ingredients

Which ingredient types matter for back painOpen to see which ingredient types matter for back pain

32 products across 1 ingredient types — open to filter the ranking.

Use types to filter ranked products

Botanicals/Herbal Extracts

32 products

Concentrated plant and herbal extracts standardized to actives. Potency depends on the extract ratio and marker content, not raw weight.

Typical: ,

Top decision cards

Best products for back pain

Ranking by · Composite outcome score

Best overall — the composite outcome score.

Top pick · DoseRank

Why this ranks #1 for back pain

Swanson Vitamins, White Willow Bark Extract, Standardized, 500 mg, 120 Capsules (Discontinued Item)

Swanson Vitamins$0.06 / serving4.8 · 227Stock not confirmed

Why this ranks here

Evidence fitWhite Willow Bark is the strongest evidence signal for this outcome.
Dose fitWhite Willow Bark at 500 mg lands inside the studied 400-1500 mg window.
Price / serving$0.06 per serving — mid price tier for this outcome.
AvailabilityIn stock across major retailers; 99% availability confidence.
TrustMixed trust signals — ratings are positive but the base is limited.

The numbers

500 mgIn rangeinside the studied 400-1500 mg window

Compare top 3 Product data Open at retailer

The rest of the ranking · DoseRank

Top 10 ranked products

Swanson Vitamins, Full Spectrum® Devil's Claw, 500 mg, 100 Capsules

Swanson VitaminsClinical87Dose fit72Popularity83$0.16/ serving

Nutricost, White Willow Bark, 600 mg, 240 Capsules

NutricostClinical86Dose fit71Popularity49$0.07/ serving

NOW Foods, Willow Bark Extract, 100 Veg Capsules (400 mg per Capsule)

NOW FoodsClinical87Dose fit75Popularity49$0.17/ serving

Nature's Way, Devil's Claw Root, 100 Vegan Capsules (480 mg per Capsule)

Nature's WayClinical86Dose fit71Popularity49$0.22/ serving

Nutricost, White Willow Bark, 120 Capsules (600 mg per Capsule)

NutricostClinical87Dose fit84Popularity30$0.19/ serving

Nature's Answer, White Willow Extract, Alcohol-Free, 2,000 mg, 1 fl oz (30 ml)

Nature's AnswerClinical88Dose fit91Popularity49$0.69/ serving

Zahler, InflaMix™, Occasional Inflammation Support, 120 Capsules

ZahlerClinical86Dose fit70Popularity49$0.82/ serving

Nutra BioGenesis, White Willow Forte™, 120 Capsules

Nutra BioGenesisClinical87Dose fit79Popularity30$1.10/ serving

Dr. Mercola, Biothin, Herbal Autophagy Complex, 3.7 oz (105 g)

Dr. MercolaClinical87Dose fit77Popularity30$0.92/ serving