DOSERANKEVIDENCE-BASED SUPPLEMENTS
DOSERANKEVIDENCE-BASED SUPPLEMENTS© 2026 DoseRank · Evidence-based supplements
Methodology·Outcomes·Categories
DOSERANKEVIDENCE-BASED SUPPLEMENTS
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  1. Search
  2. ·Outcomes
  3. ·Skin symptoms
  4. ·Psoriasis severity

Reduce psoriasis symptoms

View top productsTake the 60-sec quizGet the reportSee methodology

What this outcome means

Psoriasis severity describes how widespread and inflamed psoriatic skin patches are, from a few small plaques to large, scaly, irritated areas. On DoseRank it maps to a defined health outcome built from human studies on PASI scores, plaque coverage, and lesion redness and scaling – data sourced from open sources and specialized resources. DoseRank is not medical advice.

Who it's for

Flare-prone skinPatches that worsen in cycles of redness, scaling, and itch.
Widespread plaquesLesions covering larger areas of the body and scalp.
Stubborn patchesPersistent lesions that linger despite ongoing skin care.
Stack buildersAlready taking supplements such as Oregon Grape and want the dose right.

Evidence level

78Moderate-strong

Oregon Grape – has moderate public evidence for this outcome. This usually means there are smaller or mechanistic studies, but not randomized human trials. A DoseFit Score of 67 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 available ingredients

Oregon Grape is the best supported ingredient signal for this outcome.

Dose partly matchedDoseFit 67

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

ProcessedProcessedEvery product DoseRank ingested and scored for this outcome, before any availability or relevance filtering.
69
AvailableAvailableOf the products processed, how many are currently in stock and purchasable from a tracked retailer.
69
IngredientsIngredientsNumber of relevant ingredients for this outcome. Each is judged on its own evidence and dose fit score.
1
BrandsBrandsNumber of unique brands represented across the ranked products for this outcome.
38
CoverageCoverageHigher is betterShare of the relevant, in-stock market DoseRank has structured data for. Higher coverage means fewer blind spots in the ranking.
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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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.

DoseRank is not medical advice. Scores summarize publicly available product and study data to help you compare options; they are not a diagnosis or a treatment recommendation. If you are pregnant, breastfeeding, taking medication, or managing a health condition, consult a qualified clinician before starting any supplement. 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. Statements about supplements have not been evaluated by the FDA. Products are not intended to diagnose, treat, cure, or prevent any disease.

Relevant ingredients

Which ingredient types matter for psoriasis severityOpen to see which ingredient types matter for psoriasis severity

72 products across 1 ingredient types — open to filter the ranking.
Use types to filter ranked products

Botanicals/Herbal Extracts

72 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 psoriasis severity

Ranking by · Composite outcome score

Best overall — the composite outcome score.

Top pick · DoseRank

Why this ranks #1 for psoriasis severity

#1

Nature's Way, Oregon Grape, 500 mg, 90 Vegan Capsules

Nature's Way$0.08 / serving4.5 · 486Available now

Why this ranks here

  • Evidence fitOregon Grape has moderate human evidence for this outcome.
  • Dose fitOregon Grape at 500 mg lands inside the studied 500-1500 mg window.
  • Price / serving$0.08 per serving — low price tier for this outcome.
  • AvailabilityIn stock across major retailers; 99% availability confidence.
  • TrustMixed trust signals — ratings are positive but the base is limited.

Trade-offs

Dose fit is the weak spot on this list

The numbers

80
85
67
89

500 mgIn rangeinside the studied 500-1500 mg window
Compare top 3Product dataOpen at retailer

The rest of the ranking · DoseRank

Top 10 ranked products
#ProductPrice

Keep exploring

Related outcomes

Acne severityExtent or intensity of acne lesions.Atopic dermatitis symptomsItching, rash, and inflammation related to eczema.Eczema severityOverall clinical burden of eczema.PruritusItching or urge to scratch.RashVisible inflammatory or irritant skin eruption.
Last updated Jun 12, 2026

DoseRank is not medical advice. Scores summarize publicly available product and study data to help you compare options; they are not a diagnosis or a treatment recommendation. If you are pregnant, breastfeeding, taking medication, or managing a health condition, consult a qualified clinician before starting any supplement. 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. Statements about supplements have not been evaluated by the FDA. Products are not intended to diagnose, treat, cure, or prevent any disease.

Comparison preview

Compare the top 3, side by side

Sign-in to see all metrics

The top three for the current view — free to read, no account. Saving, exporting, alerts and the full filter set unlock once you sign in or build a personal report.

Metric
#1Nature's Way, Oregon Grape, 500 mg, 90 Vegan CapsulesNature's Way · $0.08/serving
#2Herb Pharm, Lomatium, 1 fl oz (30 ml)Herb Pharm · $0.26/serving
#3Oregon's Wild Harvest, Organic Oregon Grape, 90 Organic Vegan Capsules (380 mg per Capsule)Oregon's Wild Harvest · $0.72/serving
Composite807877
Clinical858687
Dose fit676982
Value897248
Popularity493049
Key dosages & price · raw values
500 mg613 mg1140 mgHighest
Rating
Number of ratings
Price
Price per serving
Serving size
Trust

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Unlocks with accountFull list of ingredients and dosagesFull list of metricsPrice-drop alertsRanking-changes alertsPersistent stack