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Other · Supplement ingredient

capsule

capsule is listed on 14,234 U.S. supplement product labels in the NIH DSLD, #15 of 4,614 by label frequency.

14,234
Products
#15 of 4,614
By frequency
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Verify with NIH DSLD → · FDA Daily Value reference → · Page 36 of 285

How common is capsule?

Number of supplement labels listing capsule vs nearby other ingredients

products
Source NIH Dietary Supplement Label Database (DSLD) As of 2026

Products containing capsule

L-Glutamine (750 mg)
BulkSupplements.com
2 ingredients · Amino acid/Protein
On Market
L-Glutamine (750 mg)
BulkSupplements.com
2 ingredients · Amino acid/Protein
On Market
L-Glutamine 1,000 mg
Pure Encapsulations
3 ingredients · Amino acid/Protein
On Market
L-Glutamine 1,000 mg
Pure Encapsulations
3 ingredients · Amino acid/Protein
On Market
L-Glutamine 1500
MRM
2 ingredients · Amino acid/Protein
On Market
L-Glutamine 500 mg
VitaCeutical Labs
3 ingredients · Amino acid/Protein
On Market
L-Glutamine 500 mg
Vitamer Laboratories
3 ingredients · Amino acid/Protein
On Market
L-Glutamine 500 mg
Thompson
5 ingredients · Amino acid/Protein
On Market
L-Glutamine 500 mg
Vitamer Laboratories
3 ingredients · Amino acid/Protein
On Market
L-Glutamine 500 mg
Indiana Botanic Gardens
4 ingredients · Amino acid/Protein
On Market
L-Glutamine 500 mg
Bluebonnet
5 ingredients · Amino acid/Protein
On Market
L-Glutamine 500 mg
The Vitamin Shoppe
5 ingredients · Amino acid/Protein
On Market
L-Glutamine 500 mg
The Vitamin Shoppe
5 ingredients · Amino acid/Protein
On Market
L-Glutamine 500 mg
Natural Nutra
3 ingredients · Amino acid/Protein
On Market
L-Glutamine 500 mg
AN Amazing Nutrition Amazing Formulas
4 ingredients · Amino acid/Protein
On Market
L-Glutamine 500 mg
Natural Grocers by Vitamin Cottage
5 ingredients · Amino acid/Protein
On Market
L-Glutamine 500 mg
Woodstock Vitamins
3 ingredients · Amino acid/Protein
On Market
L-Glutamine 500 mg
Woodstock Vitamins
3 ingredients · Amino acid/Protein
On Market
L-Glutamine 500 mg
Metabolic Maintenance
2 ingredients · Amino acid/Protein
On Market
L-Glutamine 550 mg
Lidtke
2 ingredients · Amino acid/Protein
On Market
L-Glutamine 550 mg
Lidtke
2 ingredients · Amino acid/Protein
On Market
L-Glutamine 750 mg
Carlson
3 ingredients · Amino acid/Protein
On Market
L-Glutamine 750 mg
Carlson
3 ingredients · Amino acid/Protein
On Market
L-Glutathione
Metabolic Maintenance
4 ingredients · Other Combinations
On Market
L-Glutathione
HoltraCeuticals
5 ingredients · Non-Nutrient/Non-Botanical
On Market
L-Glutathione 100 mg
Bluebonnet
5 ingredients · Non-Nutrient/Non-Botanical
On Market
L-Glutathione 100 mg
Bluebonnet
5 ingredients · Non-Nutrient/Non-Botanical
On Market
L-Glutathione 100 mg
Metabolic Maintenance
4 ingredients · Non-Nutrient/Non-Botanical
On Market
L-Glutathione 100 mg
Bluebonnet
5 ingredients · Non-Nutrient/Non-Botanical
On Market
L-Glutathione 100 mg
Bluebonnet
5 ingredients · Non-Nutrient/Non-Botanical
On Market
L-Glutathione 250 mg
Natural Grocers by Vitamin Cottage
5 ingredients · Non-Nutrient/Non-Botanical
On Market
L-Glutathione Formula
TumoRx
2 ingredients · Non-Nutrient/Non-Botanical
On Market
L-Glutathione Formula
TumoRx
2 ingredients · Non-Nutrient/Non-Botanical
On Market
L-Glutathione Formula
TumoRx
2 ingredients · Non-Nutrient/Non-Botanical
On Market
L-Glutathione Formula 350 mg
TumoRx
2 ingredients · Non-Nutrient/Non-Botanical
On Market
L-Glutathione Reduced 500 mg
Healthy Origins
3 ingredients · Non-Nutrient/Non-Botanical
On Market
L-Glycine 500 mg
Natural Grocers by Vitamin Cottage
5 ingredients · Amino acid/Protein
On Market
L-Lysine 1000 mg
Nutricost
4 ingredients · Amino acid/Protein
On Market
L-Lysine 500 mg
VitaCeutical Labs
4 ingredients · Amino acid/Protein
On Market
L-Lysine 500 mg
Vitamer Laboratories
4 ingredients · Amino acid/Protein
On Market
L-Lysine 500 mg
Seeking Health
5 ingredients · Amino acid/Protein
On Market
L-Lysine 500 mg
Bluebonnet
5 ingredients · Amino acid/Protein
On Market
L-Lysine 500 mg
Natural Factors
5 ingredients · Amino acid/Protein
On Market
L-Lysine 500 mg
The Vitamin Shoppe
5 ingredients · Amino acid/Protein
On Market
L-Lysine 500 mg
The Vitamin Shoppe
5 ingredients · Amino acid/Protein
On Market
L-Lysine 500 mg
Natural Nutra
4 ingredients · Amino acid/Protein
On Market
L-Lysine 500 mg
Natural Grocers by Vitamin Cottage
5 ingredients · Amino acid/Protein
On Market
L-Lysine 500 mg
Solaray
4 ingredients · Amino acid/Protein
On Market
L-Lysine 500 mg
Solaray
4 ingredients · Amino acid/Protein
On Market
L-Lysine 500 mg
Woodstock Vitamins
4 ingredients · Amino acid/Protein
On Market

Nearby Ingredients in Other

Other ingredients in the Other category cataloged in the NIH DSLD. Useful for comparing how common different nutrients are across the US supplement market.

Compare capsule vs Calories →

Calories
26,474 products · Other
Water
23,862 products · Other
Glycerol
19,903 products · Other
Flavor
16,727 products · Other
Magnesium stearate
16,228 products · Other

Nationwide ingredients with similar DSLD presence

Two peer sets for capsule: closest on total DSLD label listings (14,234 here) and closest on distinct brands that list it (965 here). Peers exclude the same DSLD category, and rows stay link-disjoint so each axis is a distinct neighborhood.

Similar label frequency

Nearest other ingredients by distinct DSLD product labels (floored at ≥50), outside this category.

Similar brand breadth

Nearest other ingredients by distinct brands listing them (floored at ≥100 brands), distinct from the label-frequency row.

Frequently asked about capsule

How many supplement products contain capsule? ▼
14,234 supplement product labels in the NIH DSLD currently lists capsule as an ingredient. By label frequency it ranks #15 of 4,614 among ingredients PlainVitamins ranks (same sort as /rankings/most-common-ingredients). Browse them below.

Source: NIH Office of Dietary Supplements, Dietary Supplement Label Database (DSLD). Regulatory reference: Source: Dietary Supplement Health and Education Act (DSHEA), 1994, 21 U.S.C. § 321(ff).

Disclaimer, Not Medical Advice: Information on this page is based on manufacturer-declared label data and is provided for educational and reference purposes only. It does not constitute medical, nutritional, or health advice. Consult a licensed healthcare provider before starting, stopping, or combining any supplement, especially if you are pregnant, nursing, take prescription medication, or have a medical condition.

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. Ingredient figures are computed directly from 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.