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Supplements: L

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3,611 supplements starting with "L"

Showing 851–900 of 3,611

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Product Ingredients
L-Ornithine-L-Aspartate Off-market 1
L-Phenylalanine 2
L-Phenylalanine 4
L-Phenylalanine Off-market 2
L-Phenylalanine Off-market 7
L-Phenylalanine 2
L-Phenylalanine 2
L-Phenylalanine 500 mg 6
L-Phenylalanine 500 mg Off-market 4
L-Phenylalanine 500 mg Off-market 2
L-Phenylalanine 500 mg Off-market 7
L-Phenylalanine 500 mg 2
L-Phenylalanine 500 mg Off-market 3
L-Phenylalanine 500 mg 4
L-Phenylalanine 500 mg Off-market 4
L-Phenylalanine 500 mg 3
L-Phenylalanine 500 mg 8
L-Phenylalanine 500 mg 7
L-Phenylalanine 500 mg 4
L-Phenylalanine 500 mg Capsules 2
L-Phenylalanine 500 Milligrams 2
L-Phenylalanine Caps 500 mg 7
L-Phenylalanine Powder 1
L-Phenylalanine Powder 1
L-Proline 2,000 mg 2
L-Proline 2000 mg Capsules 2
L-Proline 3000 mg 3
L-Proline 500 mg Off-market 4
L-Proline 500 mg Off-market 4
L-Proline 500 mg Off-market 4
L-Proline 500 mg Off-market 3
L-Proline 500 mg Off-market 4
L-Proline 500 mg Off-market 3
L-Proline 500 mg 5
L-Proline 500 mg 4
L-Proline 550 mg 2
L-Proline L-Lysine 275 mg / 275 mg 15
L-Proline L-Lysine 500 mg/500 mg Off-market 8
L-Proline Powder Off-market 2
L-Proline Powder 1
L-Proline/L-Lysine 500/500 mg Off-market 9
L-Pyroglutamic Acid 2
L-Pyroglutamic Acid Capsules 500 mg 4
L-Pyroglutamic Acid Powder 1
L-Selenomethionine 200 mcg Off-market 4
L-Serine 2,000 mg 2
L-Serine 2000 mg 3
L-Serine 2000 mg 2
L-Serine 500 mg Off-market 4
L-Serine 500 mg 5

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.