Best Copper Supplements 2026: Cost per Effective Dose
Top pick for Copper: NOW Foods Copper Glycinate 3mg — 3mg elemental copper per 1 tablet, cGMP, $0.07/day. Our best-value pick.
All Copper Supplements Compared
All 6 products sorted by cost per clinically-effective daily dose (lowest first). Dose, certification, and pricing verified against NIH DSLD and manufacturer data.
| Product | Brand | Dose / Serving | Cost / Day | Certification | Pick | Buy |
|---|---|---|---|---|---|---|
| Bronson Copper Glycinate 3mg | Bronson | 3mg elemental copper / 1 tablet | $0.06 | None stated | Buy | |
| NOW Foods Copper Glycinate 3mg | NOW Foods | 3mg elemental copper / 1 tablet | $0.07 | cGMP | Best Value | Buy |
| Solgar Chelated Copper 2mg | Solgar | 2mg elemental copper / 1 tablet | $0.08 | None stated | Buy | |
| Dr. Mercola Copper Bisglycinate 2mg | Dr. Mercola | 2mg elemental copper / 1 mini-tablet | $0.11 | None stated | Buy | |
| Pure Encapsulations Copper Glycinate 2mg | Pure Encapsulations | 2mg elemental copper / 1 capsule | $0.22 | NSF-audited GMP, hypoallergenic | Buy | |
| Thorne Copper Bisglycinate 2mg | Thorne | 2mg elemental copper / 1 capsule | $0.32 | TRAACS-chelate (Thorne-stated); no independent COA verified for this build | Buy |
In-Depth Copper Guides
Go deeper on copper — by goal, by form, and what the evidence actually supports:
Our Picks
Best Value: NOW Foods Copper Glycinate 3mg
3mg elemental copper per 1 tablet. cGMP. $0.07/day. 120 servings per container at $7.95.
How We Rank Copper Supplements
Every product is evaluated on three criteria:
- Cost per day. Not cost per pill or cost per bottle — what it actually costs per day at the product's labelled serving. Where a category's servings differ in strength we flag it above the table, because cost per day is only comparable when the doses are.
- Third-party certification. USP Verified, NSF Certified for Sport, and ConsumerLab Approved indicate independent testing for purity, potency, and contaminants.
- Bioavailable form. We prioritize products using the specific chemical form shown to be most effective in published research.
Rankings are not influenced by affiliate commissions. We earn the same commission regardless of which product you choose. Read our full methodology.
Personalize Your Copper Choice
Not sure which copper supplement is right for you? Use our free tools:
- DNA Supplement Analyzer — upload 23andMe or AncestryDNA data to check for genetic variants affecting copper metabolism. Runs entirely in your browser.
- Lab Results Interpreter — enter your blood test values to get personalized dosing recommendations.
- Supplement Stack Builder — build a complete protocol based on your age, sex, medications, and goals.
- Supplement Audit — already taking copper? Check if you have the right form and dose.
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