21st Century
21st Century has a SupplementChecker trust score of 90/100, which is Grade A+ and indicates a LOW risk level. 21st Century products are USP Verified, meaning they have undergone identity, strength, and purity testing. This, combined with a clean FDA record, suggests that 21st Century is a good brand for consumers seeking vitamins and minerals.
21st Century Trust Summary
- Trust Score
- 90/100 (Excellent)
- Grade
- A+
- Risk Level
- LOW
- Third-Party Tested
- Yes (USP)
- FDA Recalls
- 0
- Adverse Events
- 2
- GMP Certified
- Yes
21st Century has a trust score of 90/100 (Excellent). The brand is third-party tested by USP, has no FDA recalls on record and 2 adverse event reports.
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Verified Strengths
- ✓USP Verified — identity, strength, and purity tested
- ✓Clean FDA record — no warnings, recalls, or significant adverse events
Certifications
Third-party testing means an independent laboratory has verified this product's contents, purity, and potency match what's on the label.
FDA Record
Is 21st Century Third-Party Tested?
Yes — 21st Century is USP-verified. This means an independent laboratory has verified that the products' contents, purity, and potency match their label claims. They also maintain GMP (Good Manufacturing Practice) certification.
Is 21st Century a Good Brand?
21st Century scores 90/100 (A+) — this is an above-average score indicating a trustworthy brand. 21st Century has a clean FDA record with no warnings or recalls. The brand holds third-party certifications (USP-verified), which is a strong quality indicator.
About 21st Century
21st Century is a US-based manufacturer of supplements. The company is an independent entity. 21st Century's founding date is unknown. They offer a wide range of vitamins and minerals available in many retail locations.
Product Specialization
21st Century specializes in vitamins and minerals. Their product line includes multivitamins, single-ingredient vitamins like Vitamin C and D, and essential minerals such as magnesium and zinc. They offer products in various forms, including tablets, capsules, and gummies.
Testing & Certifications Explained
21st Century products are USP Verified. This means that the United States Pharmacopeia (USP), a non-profit organization, has tested samples of 21st Century products. The USP verification ensures that what is listed on the label is in the bottle, at the claimed potency, and free from specified contaminants. This certification provides an extra layer of confidence in the quality and safety of 21st Century supplements.
How 21st Century Compares
Compared to similar brands in the vitamin and mineral space, 21st Century's trust score of 90/100 is relatively high. For example, Nature Made, another popular vitamin brand, also boasts USP verification and earns a similar trust score. Other brands like NOW Foods often publish their lab results, but may not have the same level of broad retail availability as 21st Century.
Buying Guidance
Given 21st Century's high trust score and USP verification, consumers can generally feel confident purchasing their products. Look for the USP Verified mark on the product label to ensure it has undergone third-party testing. You can find 21st Century products at major retailers and online.
Frequently Asked Questions
Has 21st Century had any recalls?
Are 21st Century supplements third-party tested?
Is 21st Century safe?
Is 21st Century a good brand?
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How We Calculated This Score
Every brand starts with a baseline score of 70/100.
Points added for: Third-party certifications (NSF +15, USP +15, Informed Sport +10), publishing lab results (+10), clean regulatory record (+10), 10+ years in business (+10), organic certification (+5).
Points deducted for: FDA warning letters (-25), product recalls (-20), high adverse events (-15), no third-party testing (-15), proprietary blends (-10), no GMP (-10).
Score is capped at 0-100. Grade and risk level are derived from the final score.
All data sourced from FDA.gov, Health Canada (LNHPD / recalls-rappels), NSF.org, USP.org, and publicly available brand information. Last updated: 4/9/2026.
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- Trust Score
- 90/100
- Grade
- A+
- Risk Level
- LOW
- Third-Party Tested
- Yes
- FDA Recalls
- 0
- Adverse Reports
- 2