Top pick · DoseRank
Why this ranks #1 for copper status
21st Century, One Daily, Women's, 100 Tablets
Why this ranks here
- Evidence fitCopper Sulfate and Zinc Oxide are the strongest evidence signals for this outcome.
- Dose fit1 of 2 dosed ingredients land in the studied range. Copper Sulfate at 1.4 mg lands inside the studied 1-3 mg window.
- Price / serving$0.07 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.
Trade-offs
The numbers