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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 35 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

Kudzu/St. John's Wort
Nature's Sunshine
8 ingredients · Botanical
On Market
Kutki Supreme
Harmony Nutraceuticals
9 ingredients · Botanical
On Market
L- Leucine 400 mg
NutraBio
2 ingredients · Amino acid/Protein
On Market
L-5-HTP 100 mg
Meijer
5 ingredients · Amino acid/Protein
On Market
L-5-MTHF 1,000 mcg
Seeking Health
6 ingredients · Vitamin
On Market
L-Arginine 1,350 mg
Carlson
2 ingredients · Amino acid/Protein
On Market
L-Arginine 1000 mg
Hard Rhino
2 ingredients · Amino acid/Protein
On Market
L-Arginine 500 mg
VitaCeutical Labs
5 ingredients · Amino acid/Protein
On Market
L-Arginine 500 mg
Natural Factors
4 ingredients · Amino acid/Protein
On Market
L-Arginine 500 mg
Natural Factors
4 ingredients · Amino acid/Protein
On Market
L-Arginine 500 mg
Woodstock Vitamins
5 ingredients · Amino acid/Protein
On Market
L-Arginine 750 mg
NutraBio
2 ingredients · Amino acid/Protein
On Market
L-Arginine 750 mg
Metabolic Maintenance
2 ingredients · Amino acid/Protein
On Market
L-Arginine Cardio Complete
Herbal Nutrition
29 ingredients · Other Combinations
On Market
L-Carnitine 250 mg
BIOVEA
5 ingredients · Non-Nutrient/Non-Botanical
On Market
L-Carnitine 250 mg
Bluebonnet
5 ingredients · Non-Nutrient/Non-Botanical
On Market
L-Carnitine 250 mg
Bluebonnet
5 ingredients · Non-Nutrient/Non-Botanical
On Market
L-Carnitine 500 mg
VitaCeutical Labs
5 ingredients · Amino acid/Protein
On Market
L-Carnitine 500 mg
Vitamer Laboratories
5 ingredients · Amino acid/Protein
On Market
L-Carnitine 500 mg
NOW
5 ingredients · Amino acid/Protein
On Market
L-Carnitine 500 mg
Vitamer Laboratories
5 ingredients · Non-Nutrient/Non-Botanical
On Market
L-Carnitine 500 mg
Protocol For Life Balance
5 ingredients · Non-Nutrient/Non-Botanical
On Market
L-Carnitine 500 mg
Natural Factors
5 ingredients · Amino acid/Protein
On Market
L-Carnitine 500 mg
Natural Factors
5 ingredients · Amino acid/Protein
On Market
L-Carnitine 500 mg
Bluebonnet
5 ingredients · Non-Nutrient/Non-Botanical
On Market
L-Carnitine 500 mg
NutraBio
3 ingredients · Non-Nutrient/Non-Botanical
On Market
L-Carnitine 500 mg
Nature's Way
4 ingredients · Non-Nutrient/Non-Botanical
On Market
L-Carnitine 500 mg
Natural Grocers by Vitamin Cottage
6 ingredients · Non-Nutrient/Non-Botanical
On Market
L-Carnitine 500 mg
Bluebonnet
4 ingredients · Non-Nutrient/Non-Botanical
On Market
L-Carnitine 500 mg
PipingRock
6 ingredients · Non-Nutrient/Non-Botanical
On Market
L-Carnitine 500 mg
Metabolic Maintenance
3 ingredients · Non-Nutrient/Non-Botanical
On Market
L-Carnitine 500 mg
NutraBio
3 ingredients · Non-Nutrient/Non-Botanical
On Market
L-Carnitine Fumarate 1000 mg
OL Olympian Labs
7 ingredients · Non-Nutrient/Non-Botanical
On Market
L-Carnitine Fumarate 1000 mg
OL Olympian Labs
7 ingredients · Non-Nutrient/Non-Botanical
On Market
L-Carnosine 200 mg
Kirkman
4 ingredients · Non-Nutrient/Non-Botanical
On Market
L-Carnosine 500 mg
NOW
4 ingredients · Non-Nutrient/Non-Botanical
On Market
L-Carnosine 500 mg
NutraBio
2 ingredients · Non-Nutrient/Non-Botanical
On Market
L-Carnosine 500 mg
BulkSupplements.com
2 ingredients · Non-Nutrient/Non-Botanical
On Market
L-Carnosine 500 mg
BulkSupplements.com
2 ingredients · Non-Nutrient/Non-Botanical
On Market
L-Carnosine 500 mg
BulkSupplements.com
2 ingredients · Non-Nutrient/Non-Botanical
On Market
L-Carnosine 500 mg
BulkSupplements.com
2 ingredients · Non-Nutrient/Non-Botanical
On Market
L-Carnosine 500 mg
Klaire Labs
5 ingredients · Non-Nutrient/Non-Botanical
On Market
L-Carnosine 500 mg
Best Naturals
5 ingredients · Amino acid/Protein
On Market
L-Carnosine 500 mg
Advance Physician Formulas
2 ingredients · Non-Nutrient/Non-Botanical
On Market
L-Carntine Tartrate
Pure
2 ingredients · Non-Nutrient/Non-Botanical
On Market
L-Citrulline 1,500 mg
Nutricost
4 ingredients · Amino acid/Protein
On Market
L-Citrulline 1200 mg
Double Wood Supplements
3 ingredients · Amino acid/Protein
On Market
L-Citrulline 3,000 mg
SuperiorLabs
4 ingredients · Amino acid/Protein
On Market
L-Cysteine 500 mg
Bluebonnet
5 ingredients · Amino acid/Protein
On Market
L-Cysteine 500 mg
Bluebonnet
5 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.