Supplement brand
21st Century
21st Century has 423 supplement product labels cataloged in the NIH DSLD, 185 currently on market, #52 of 4,269 by catalog size.
- 423
- Total products
- 185
- On market
- #52 of 4,269
- By catalog size
- 44%
- Still on market
Brand at a glance
21st Century filed 423 supplement labels in NIH DSLD; 43.7% still on-market, ranking #52 of 4,269 by catalog size among brands PlainVitamins indexes.
- 423
- Total DSLD labels
- 185
- On market today
- 43.7%
- Still listed
- #52 of 4,269
- Catalog rank
Figures come from NIH DSLD label rows PlainVitamins indexes. Catalog size is a filing count, not a quality, safety, or efficacy score.
21st Century vs all brands by DSLD catalog size
Where this brand's product-label count sits among every brand PlainVitamins indexes (archive depth, not a quality or safety ranking)
423 52nd of 4271 higher than 4,219 of 4,271 brands
Brands banded by distinct NIH DSLD product labels
Each bar is a band; taller bars hold more brands. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source NIH Dietary Supplement Label Database (DSLD) · 2026-09-04
21st Century labels by product type
Distinct DSLD product-type counts for this brand's catalog (second framed viz alongside the brand-vs-all distribution)
- Other Combinations
Other Combinations
78 labels
- Vitamin
Vitamin
66 labels
- Fat/Fatty Acid
Fat/Fatty Acid
58 labels
- Multi-Vitamin and Mineral (…
Multi-Vitamin and Mineral (…
49 labels
- Non-Nutrient/Non-Botanical
Non-Nutrient/Non-Botanical
46 labels
- Botanical with Nutrients
Botanical with Nutrients
46 labels
- Mineral
Mineral
43 labels
- Botanical 31
Botanical
31 labels
What the DSLD catalog says about 21st Century
21st Century filed 423 supplement labels in NIH DSLD; 43.7% still on-market, ranking #52 of 4,269 by catalog size among brands PlainVitamins indexes. That places it in the 99th percentile of brands by distinct product-label count (rank #52 of 4,271). Catalog size and on-market share are volume metrics from NIH DSLD filings, not quality, safety, or efficacy scores.
Products by 21st Century
Shelf peers by catalog size
NIH DSLD brands whose filing counts sit nearest to 21st Century's 423-label shelf (not the estate's largest catalogs). On-market % is shelf status, not a quality score.
Compare 21st Century vs OL Olympian Labs → (Δ 7 labels)
Nationwide brands with similar DSLD catalogs
Two peer sets for 21st Century: closest on total DSLD filings (423 here) and closest on on-market labels (185 here). Rows stay link-disjoint so each axis is a distinct neighborhood, not the largest-catalog strip.
Similar filing count
Nearest other brands by distinct DSLD product filings (floored at ≥50).
Similar on-market count
Nearest other brands by on-market DSLD labels (floored at ≥25), distinct from the filing-count row.
Counts from NIH DSLD label filings; on-market status is shelf presence in the source, not a quality score.
Source: NIH Office of Dietary Supplements, Dietary Supplement Label Database (DSLD). Regulatory framework: Source: Dietary Supplement Health and Education Act (DSHEA), 1994, 21 U.S.C. § 321(ff).
Disclaimer, Not Medical Advice: This information is provided for informational purposes only and does not constitute medical advice. Consult a qualified healthcare provider before starting, stopping, or combining any dietary supplement.
Read our methodology , how this data is sourced, computed, and verified.
Every figure on PlainVitamins is rendered directly from the NIH Dietary Supplement Label Database (DSLD), no number is typed in by an editor. This page draws directly on the NIH DSLD, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.