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.

DOSERANKEVIDENCE-BASED SUPPLEMENTS

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See methodology

What this outcome means

Copper status reflects whether your body holds enough copper to support the everyday processes that depend on this trace mineral. On DoseRank it maps to a defined health outcome built from human studies on serum copper, ceruloplasmin levels, and copper-dependent enzyme activity – data sourced from open sources and specialized resources. DoseRank is not medical advice.

Who it's for

Low intake dietsEating patterns that leave little room for copper-rich foods.

Malabsorption concernsGut conditions or surgeries that make trace minerals harder to absorb.

Checking trace mineralsPeople reviewing bloodwork who want their copper reading in a healthy range.

Stack buildersAlready taking supplements such as Copper Gluconate and want the dose right.

Evidence level

92Strong

Copper Gluconate – has strong public evidence. DoseRank looks at both evidence quality and formula fit. 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 ingredients

Copper Gluconate 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: Copper Gluconate 1 mg vs 1-4 mg.

Processed

3.4k

Available

3.4k

Ingredients

18

Brands

357

Coverage

100%

Relevant ingredients

Which ingredient types matter for copper statusOpen to see which ingredient types matter for copper status

3.2k products across 2 ingredient types — open to filter the ranking.

Use types to filter ranked products

Minerals & Trace Elements

3.2k products

Inorganic nutrients from calcium to zinc. The chemical form drives absorption – chelates and citrates usually beat cheap oxides.

Typical: , , , ...

Glandulars & Animal-Derived Extracts

12 products

Animal gland and organ-tissue extracts used traditionally for targeted organ support. Purity and grass-fed sourcing are the key quality markers.

Typical:

Top decision cards

Best products for copper status

Ranking by · Composite outcome score

Best overall — the composite outcome score.

Top pick · DoseRank

Why this ranks #1 for copper status

#1

Jarrow Formulas, Vegan Zinc Balance, 100 Veggie Capsules

Jarrow Formulas$0.12 / serving4.8 · 37,864Available now

Why this ranks here

Evidence fitCopper Gluconate is the strongest evidence signal for this outcome.
Dose fitCopper Gluconate at 1 mg lands inside the studied 1-4 mg window.
Price / serving$0.12 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.

The numbers

86

88

67

81

1 mgIn rangeinside the studied 1-4 mg window

Compare top 3 Product data Open at retailer

The rest of the ranking · DoseRank

Top 10 ranked products

2

21st Century, One Daily, Women's, 100 Tablets

21st CenturyClinical87Dose fit71Popularity99$0.07/ serving

3

Trace, Ionic Zinc, 50 mg, 2 fl oz (59 ml)

TraceClinical88Dose fit78Popularity80$0.28/ serving

4

Nature's Life, Iron Complex, 50 Capsules

Nature's LifeClinical88Dose fit67Popularity50$0.12/ serving

5

NeoCell, Marine Collagen Peptides + Hyaluronic Acid, 120 Capsules

NeoCellClinical88Dose fit69Popularity96$0.50/ serving

6

Deva, Vegan Prenatal Multivitamin & Mineral, One Daily, 90 Coated Tablets

DevaClinical86Dose fit69Popularity68$0.15/ serving

7

Trace, Ionic Copper, 2 fl oz (59 ml)

TraceClinical89Dose fit90Popularity68$0.37/ serving

8

21st Century, One Daily, Maximum, 100 Tablets

21st CenturyClinical84Dose fit78Popularity84$0.07/ serving

9

Vitacost, Everyday, Zinc and Copper, 100 Capsules

VitacostClinical87Dose fit67Popularity89$0.04/ serving

10

Carlson, Mini Multi, 250 Mini Tablets

CarlsonClinical88Dose fit74Popularity30$0.17/ serving

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 →

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

#1Jarrow Formulas, Vegan Zinc Balance, 100 Veggie CapsulesJarrow Formulas · $0.12/serving

#221st Century, One Daily, Women's, 100 Tablets21st Century · $0.07/serving

#3Trace, Ionic Zinc, 50 mg, 2 fl oz (59 ml)Trace · $0.28/serving

Composite868583

Clinical888788

Dose fit677178

Value818864

Popularity999980

Key dosages & price · raw values

1 mgHighest——

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

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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.