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Supplement brand

Dr. Clark Research Association Dr. Clark Zentrum

Dr. Clark Research Association Dr. Clark Zentrum has 47 supplement product labels cataloged in the NIH DSLD, 46 currently on market, #369 of 4,269 by catalog size.

47
Total products
46
On market
#369 of 4,269
By catalog size
98%
Still on market

Brand at a glance

Dr. Clark Research Association Dr. Clark Zentrum filed 47 supplement labels in NIH DSLD; 97.9% still on-market, ranking #369 of 4,269 by catalog size among brands PlainVitamins indexes.

47
Total DSLD labels
46
On market today
97.9%
Still listed
#369 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.

Verify with NIH DSLD → · FDA dietary supplement overview →

Dr. Clark Research Association Dr. Clark Zentrum 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)

47 375th of 4271 higher than 3,896 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

Dr. Clark Research Association Dr. Clark Zentrum labels by product type

Distinct DSLD product-type counts for this brand's catalog (second framed viz alongside the brand-vs-all distribution)

labels
Source NIH Dietary Supplement Label Database (DSLD) As of 2026-09-04

What the DSLD catalog says about Dr. Clark Research Association Dr. Clark Zentrum

Dr. Clark Research Association Dr. Clark Zentrum filed 47 supplement labels in NIH DSLD; 97.9% still on-market, ranking #369 of 4,269 by catalog size among brands PlainVitamins indexes. That places it in the 91st percentile of brands by distinct product-label count (rank #375 of 4,271). Catalog size and on-market share are volume metrics from NIH DSLD filings, not quality, safety, or efficacy scores.

Products by Dr. Clark Research Association Dr. Clark Zentrum

Alkaline Minerals
7 ingredients · Mineral
On Market
Arginine 500 mg
3 ingredients · Amino acid/Protein
On Market
Betaine Hydrochloride 350 mg
3 ingredients · Non-Nutrient/Non-Botanical
On Market
Branch Chained Amino Acids 500 mg
4 ingredients · Amino acid/Protein
On Market
Calcium Citrate 500 mg
3 ingredients · Mineral
On Market
Chromium 200 mcg
4 ingredients · Mineral
On Market
Cysteine 500 mg
3 ingredients · Amino acid/Protein
On Market
Dr. Hulda Clark's L-A Formula
2 ingredients · Amino acid/Protein
On Market
Dr. Hulda Clark's L-G Formula
2 ingredients · Amino acid/Protein
On Market
Essential Amino Acids 500 mg
12 ingredients · Amino acid/Protein
On Market
Folic Acid 1 mg
3 ingredients · Vitamin
On Market
Glutamine 500 mg
2 ingredients · Amino acid/Protein
On Market
Lysine 500 mg
3 ingredients · Amino acid/Protein
On Market
Magnesium Oxide 540 mg
3 ingredients · Mineral
On Market
Manganese 10 mg
3 ingredients · Mineral
On Market
Methionine 500 mg
3 ingredients · Amino acid/Protein
On Market
Molybdenum 250 mcg
4 ingredients · Mineral
On Market
Multivitamin and Mineral Formula without Iron
28 ingredients · Multi-Vitamin and Mineral (MVM)
Off Market
Niacinamide 500 mg
2 ingredients · Vitamin
On Market
Ornithine 500 mg
2 ingredients · Amino acid/Protein
On Market
Pantothenic Acid 450 mg
3 ingredients · Vitamin
On Market
Potassium Citrate 530 mg
3 ingredients · Mineral
On Market
Selenium 200 mcg
4 ingredients · Mineral
On Market
Super Omega 3 1000 mg
12 ingredients · Fat/Fatty Acid
On Market
Taurine 500 mg
2 ingredients · Non-Nutrient/Non-Botanical
On Market
Tryptophan 480 mg
2 ingredients · Amino acid/Protein
On Market
Turmeric with Black Pepper
6 ingredients · Botanical
On Market
Vitamin B Complex 461 mg
15 ingredients · Vitamin
On Market
Vitamin B1 500 mg
3 ingredients · Vitamin
On Market
Vitamin B12 1 mg
4 ingredients · Vitamin
On Market
Vitamin B2 300 mg
3 ingredients · Vitamin
On Market
Vitamin B2 Powder
1 ingredient · Vitamin
On Market
Vitamin B6 250 mg
3 ingredients · Vitamin
On Market
Vitamin C 1000 mg
3 ingredients · Vitamin
On Market
Vitamin C Powder
2 ingredients · Vitamin
On Market
Vitamin D3 1000 IU
5 ingredients · Vitamin
On Market
Vitamin E 400 IU (267 mg TE)
6 ingredients · Vitamin
On Market
Vitamin K 1+2 100 mcg
5 ingredients · Vitamin
On Market

Shelf peers by catalog size

NIH DSLD brands whose filing counts sit nearest to Dr. Clark Research Association Dr. Clark Zentrum's 47-label shelf (not the estate's largest catalogs). On-market % is shelf status, not a quality score.

Compare Dr. Clark Research Association Dr. Clark Zentrum vs Doctor Morse's Healing Herbs → (Δ same count)

Doctor Morse's Healing Herbs
47 filings · 96% on shelf
same shelf depth
Harmony Nutraceuticals
47 filings · 100% on shelf
same shelf depth
L'il Critters
47 filings · 53% on shelf
same shelf depth
Neurobiologix
47 filings · 100% on shelf
same shelf depth
Nuun
47 filings · 51% on shelf
same shelf depth

Nationwide brands with similar DSLD catalogs

Two peer sets for Dr. Clark Research Association Dr. Clark Zentrum: closest on total DSLD filings (47 here) and closest on on-market labels (46 here). Rows stay link-disjoint so each axis is a distinct neighborhood, not the largest-catalog strip.

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.