Brand
Dr. Clark Research Association Dr. Clark Zentrum supplements
Dr. Clark Research Association Dr. Clark Zentrum has 85 products in the NIH Dietary Supplement Label Database (89 labels), 83 of them on the market at its January 2026 release; its labels most often list lysine, calcium, magnesium. It ranks 256 of 5,741 brands by products on file.
- Products on file
- 8589 labels, sizes and designs counted
- On the market
- 8398% of its products
- Labels disclosing no amount
- 4products whose label gives no amount per ingredient
- On file since
- 2020newest label May 21, 2025
What do Dr. Clark Research Association Dr. Clark Zentrum 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 |
|---|---|---|---|
| Lysine | 5 | 313 mg | 500 mg |
| Calcium | 5 | 240 mg | 115 mg |
| Magnesium | 5 | 380 mg | 86 mg |
| Niacin | 5 | 77 mg | 20 mg |
| Vitamin C | 5 | 1,000 mg | 100 mg |
| Riboflavin | 5 | 100 mg | 4 mg |
| Potassium | 4 | 604 mg | 99 mg |
| Vitamin B6 | 4 | 18 mg | 6 mg |
| Biotin | 4 | 370 mcg | 200 mcg |
| Thiamin | 4 | 70 mg | 5 mg |
Source: Supplement Facts rows of Dr. Clark Research Association Dr. Clark Zentrum's current labels and of every product's, NIH ODS Dietary Supplement Label Database version 9.4.0.
Every Dr. Clark Research Association Dr. Clark Zentrum product
On-market products first, A to Z (page 2 of 2).
Every product with what it contains: the full list.
- Niacin 25 mgon the market2020
- Niacinamide 500 mgon the market2020
- Ornithine 500 mgon the market2020
- Pantothenic Acid 450 mgon the market2020
- Papain 500 mgon the market2020
- Pau D'Arco 450 mgon the market2020
- Pepsin 300 mgon the market2020
- Potassium Citrate 530 mgon the market2020
- Reishi Mushroom 425 mgon the market2020
- Rose Hips 575 mgon the market2020
- Royal Floraon the market2020
- Selenium 200 mcgon the market2020
- Sodium Alginateon the market2020
- Spice Syrupon the market2020
- Super Omega 3 1000 mgon the market2021
- Taurine 500 mgon the market2021
- Thioctic Acid 350 mgon the market2020
- Tryptophan 480 mgon the market2020
- Turmeric with Black Pepperon the market ยท 2 labels2025
- Uva Ursi 500 mgon the market2021
- Vitamin B Complex 461 mgon the market2020
- Vitamin B1 500 mgon the market2020
- Vitamin B12 1 mgon the market2020
- Vitamin B2 300 mgon the market2020
- Vitamin B2 Powderon the market2020
- Vitamin B6 250 mgon the market2020
- Vitamin C 1000 mgon the market2020
- Vitamin C Powderon the market2020
- Vitamin D3 1000 IUon the market2020
- Vitamin E 400 IU (267 mg TE)on the market2020
- Vitamin K 1+2 100 mcgon the market2020
- Wormwood 365 mgon the market2020
- Zinc 30 mgon the market2020
- Ip6off the market2020
- Liver Support Teaoff the market2020
What kinds of products does Dr. Clark Research Association Dr. Clark Zentrum make?
Dr. Clark Research Association Dr. Clark Zentrum products by DSLD product type
When did its products enter the database, and which are still sold?
| Year | On the market | Off the market |
|---|---|---|
| 2020 | 71 | 2 |
| 2021 | 10 | 0 |
| 2023 | 1 | 0 |
| 2025 | 1 | 0 |
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 Dr. Clark Zentrum Limited (manufacturer), San Gwann, Malta, on 84 products.
Where next?
- Lysine
- Calcium
- Magnesium
- Niacin
- Natural Grocers by Vitamin Cottage
- Plum Flower Brand
- BioGenesis Nutraceuticals
- Schiff
- All brands
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.