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Supplements: L

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3,611 supplements starting with "L"

Showing 101–150 of 3,611

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Product Ingredients
L-Arginine 500 mg 4
L-Arginine 500 mg Off-market 5
L-Arginine 500 mg Off-market 5
L-Arginine 500 mg 4
L-Arginine 500 mg 1
L-Arginine 500 mg 5
L-Arginine 500 mg 4
L-Arginine 500 mg Off-market 5
L-Arginine 500 mg 4
L-Arginine 500 mg 4
L-Arginine 500 mg 5
L-Arginine 500 mg & L-Citrulline 250 mg 5
L-Arginine 500 mg L-Ornithine 250 mg Off-market 5
L-Arginine 500 mg L-Ornithine 500 mg 7
L-Arginine 5000 mg Natural Orange Flavor Off-market 9
L-Arginine 5000 mg Orange 9
L-Arginine 675 mg Off-market 2
L-Arginine 700 mg 5
L-Arginine 750 mg Off-market 6
L-Arginine 750 mg Off-market 2
L-Arginine 750 mg 2
L-Arginine 850 mg Maximum Strength 5
L-Arginine Advanced 1,000 mg Off-market 9
L-Arginine AKG Off-market 2
L-Arginine Alpha Ketoglutarate 2
L-Arginine Alpha Ketoglutarate 2
L-Arginine Alpha Ketoglutarate 3500 mg Unflavored 3
L-Arginine Amino Acid 500 mg Off-market 4
L-Arginine Amino Acid Powder Off-market 1
L-Arginine Base Off-market 2
L-Arginine Base (Vegan) 2
L-Arginine Base 1000 mg 2
L-Arginine Base 500 mg 2
L-Arginine Caps 500 mg Off-market 6
L-Arginine Caps 700 mg Off-market 4
L-Arginine Capsules 500 mg 5
L-Arginine Capsules 5000mg 2
L-Arginine Cardio Complete 29
L-Arginine Double Strength 1000 mg 8
L-Arginine Ethyl Ester 2
L-Arginine Extra Strength 7
L-Arginine Extra Strength 2662 mg 10
L-Arginine HCl Off-market 2
L-Arginine HCl 1,500 mg 3
L-Arginine HCL 1000 mg Off-market 5
L-Arginine HCl 1000 mg Capsules Off-market 2
L-Arginine HCl 500 mg 5
L-Arginine HCL 700 mg Off-market 5
L-Arginine HCL Capsules 5000 mg 2
L-Arginine HCl Tropical Flavor 8

Letter "L" cohort across the 26-letter alphabet

Counts of products per letter. Letter "L" sits within 3611 entries.

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

Top 10 letters by total product count

Letters with the most product entries, selecting a letter narrows the directory.

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

Bottom 10 letters by total product count

Less-populated letters, useful for spotting niche-named brands.

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

Why an alphabetical letter index?

The alphabetical browse exists because most casual searches start from a known product or brand name. If you remember the bottle in your cabinet starts with "L", this is the fastest way to scan all matching products in the NIH Dietary Supplement Label Database (DSLD). The full directory contains 3,611 products under "L", sortable by name, newest entry, or brand. For comparing products within a category (vitamin D, fish oil, multivitamins), use the type-filtered listing instead. For brand-level analysis, jump to the brands directory.

Per-product detail pages show the declared ingredient list, serving size, market status, and Daily Value (DV) percentages, when those values were submitted to the NIH on the original label filing. Many DSLD records include only structural ingredient lists without the per-row Supplement Facts panel; in those cases the detail page renders "Not disclosed on label" rather than a fabricated estimate. Editorial commentary and ingredient context is compiled by our editorial team. Inclusion in the directory is a label record, not an FDA endorsement, quality verification, or clinical efficacy claim. Always verify amounts on the physical label and consult a healthcare provider before starting any supplement, particularly if pregnant, nursing, taking prescription medication, or managing a medical condition.

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Data sourced from the NIH Office of Dietary Supplements, Dietary Supplement Label Database (DSLD). See our methodology for details.

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.