Brand
21st Century supplements
21st Century has 338 products in the NIH Dietary Supplement Label Database (798 labels), 254 of them on the market at its January 2026 release; its labels most often list calcium, vitamin D, vitamin C. It ranks 49 of 5,741 brands by products on file.
- Products on file
- 338798 labels, sizes and designs counted
- On the market
- 25475% of its products
- Labels disclosing no amount
- 1products whose label gives no amount per ingredient
- On file since
- 2012newest label July 24, 2025
What do 21st Century labels contain?
The ingredients its products list most, with its median amount per serving against the median of every product listing the same ingredient.
| Ingredient | Its products | Its median | Market median |
|---|---|---|---|
| Calcium | 160 | 166 mg | 115 mg |
| Vitamin D | 92 | 12.5 mcg | 15 mcg |
| Vitamin C | 88 | 120 mg | 100 mg |
| Zinc | 68 | 15 mg | 11 mg |
| Vitamin B6 | 58 | 5 mg | 6 mg |
| Niacin | 57 | 20 mg | 20 mg |
| Vitamin B12 | 56 | 21.5 mcg | 36 mcg |
| Riboflavin | 51 | 2.13 mg | 4 mg |
| Thiamin | 51 | 2.4 mg | 5 mg |
| Copper | 47 | 1.6 mg | 1 mg |
Source: Supplement Facts rows of 21st Century's current labels and of every product's, NIH ODS Dietary Supplement Label Database version 9.4.0.
Every 21st Century product
On-market products first, A to Z (page 5 of 7).
Every product with what it contains: part 1 · part 2.
- One Daily Women's 50+on the market · 5 labels2022
- One Daily Women's Active Metabolismon the market2015
- Organic Spirulina Arthrospira Plantensison the market2012
- Oyster Shell Calcium 250 +Don the market2012
- Oyster Shell Calcium 500on the market2012
- Oyster Shell Calcium 500 +Don the market2012
- Oyster Shell Calcium 500 +D Extra Vitamin D Value Sizeon the market2012
- Papaya Enzymeon the market · 3 labels2025
- Pomegranate 500 mgon the market · 2 labels2019
- Potassium Gluconate 595 mgon the market · 4 labels2025
- PreNatalon the market · 3 labels2019
- PreNatal DHAon the market · 2 labels2019
- PreNatal with Folic Acidon the market2022
- Prostate Healthon the market · 3 labels2025
- Psyllium Fiberon the market · 3 labels2020
- Psyllium plus Calciumon the market · 2 labels2019
- Red Yeast Rice 600 mgon the market2025
- Resveratrol Red Wine Extracton the market · 2 labels2025
- Saw Palmetto 450 mgon the market · 4 labels2021
- Selenium 200 mcgon the market · 4 labels2021
- Sentryon the market · 6 labels2015
- Sentry Adultson the market · 7 labels2025
- Sentry Energyon the market · 2 labels2019
- Sentry Hearton the market · 2 labels2015
- Sentry Menon the market · 4 labels2025
- Sentry Senioron the market · 12 labels2023
- Sentry Senior Adults 50+on the market · 3 labels2022
- Sentry Senior Men's 50+on the market · 5 labels2025
- Sentry Senior Women's 50+on the market · 5 labels2022
- Sentry Womenon the market · 3 labels2022
- Shark Cartilage 500 mgon the market2012
- Slow Release Ironon the market · 2 labels2022
- Soy Isoflavones Extracton the market · 3 labels2022
- St. John's Wort Extracton the market · 6 labels2023
- Standardized Black Cohosh & Soy Isoflavones 100% Vegetarianon the market2013
- Standardized Herbal Energyon the market2012
- Standardized Olive Leaf Extracton the market2012
- Stomach Friendly Special-C 500 mgon the market2012
- Stress Bon the market2012
- Stress B with Ironon the market · 3 labels2019
- Stress B with Zincon the market · 3 labels2022
- Super Collagen 6000 mg plus Vitamin Con the market2022
- Super Strength D3-2000 IUon the market2015
- Therapeutic-Mon the market · 4 labels2025
- Triple Omega Complex 3-6-9on the market · 4 labels2019
- Turmeric Complex 500 mgon the market · 2 labels2022
- Ultra Formula Co Q10 400 mgon the market · 2 labels2012
- Valerian Extracton the market · 2 labels2020
- Vinpocetine 10 mgon the market2015
- Vitamin A 3000 mcgon the market2025
What kinds of products does 21st Century make?
21st Century products by DSLD product type
When did its products enter the database, and which are still sold?
| Year | On the market | Off the market |
|---|---|---|
| 2012 | 48 | 36 |
| 2013 | 5 | 8 |
| 2015 | 13 | 16 |
| 2016 | 0 | 7 |
| 2018 | 0 | 1 |
| 2019 | 67 | 5 |
| 2020 | 1 | 9 |
| 2021 | 33 | 0 |
| 2022 | 20 | 0 |
| 2023 | 16 | 1 |
| 2024 | 9 | 0 |
| 2025 | 42 | 1 |
Source: NIH Dietary Supplement Label Database label entry dates and market events, version 9.4.0.
Who is behind it?
Its labels most often name 21st Century HealthCare, Inc. (manufacturer), Tempe, AZ, on 298 products.
Where next?
How to read a brand's figures, and what labels cannot tell you about a brand: comparing supplement brands by their labels. Label data, not medical advice.