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Supplements: R

Verify with NIH DSLD →

1,753 supplements starting with "R"

Showing 1,451–1,500 of 1,753

Product Ingredients
Riboctane 5
Riboflavin 2
Riboflavin Off-market 4
Riboflavin Off-market 9
Riboflavin (Vitamin B-2) 100 mg Off-market 4
Riboflavin (Vitamin B2) Off-market 2
Riboflavin (Vitamin B2) 100 mg Off-market 4
Riboflavin 100 mg 4
Riboflavin 100 mg 4
Riboflavin 400 mg Off-market 10
Riboflavin 400 mg Off-market 4
Riboflavin 400 mg 5
Riboflavin 400 mg 5
Riboflavin 5 Phosphate Vitamin B2 2
Riboflavin 5'-Phosphate Off-market 4
Riboflavin 5'-Phosphate Off-market 5
Riboflavin B2 100 mg Off-market 5
Riboflavin Vitamin B-2 100 mg Off-market 8
Riboflavin Vitamin B2 100 mg Off-market 4
Riboflavin Vitamin B2 400 mg Off-market 5
Riboflavin Vitamin B2 400 mg Off-market 9
Riboflavin Vitamin B2 400 mg Capsules 2
Riboflavin Vitamin B2 400 mg Potency Off-market 10
Riboflavin Vitamin B2 USP 2
Riboflavin-5-Phosphate Off-market 4
Ribomax M Off-market 8
Ribose Off-market 4
Ribose Energy With Creatine Off-market 6
Ribose Plus Off-market 11
Ribose Powder Off-market 2
Rice Fiber First 8
Rice Protein Off-market 12
Rice Protein 450 mg 3
Rice Protein Plain Off-market 19
Rice Protein Powder 1
Rice Protein Powder Chocolate 17
Rice Protein Powder Mixed Berry 15
Rice Protein Powder Plain 14
Rice Protein Powder Vanilla 15
Rice Tocotrienols 7
Rich Chocolate Off-market 26
Rich Mocha SlimStyles Weight Loss Drink Mix With PGX Off-market 42
Rico Blood OPC 16
Rico Digest 13
Rico Women's Balance 25
Rico-Amor 12
Rico-Prost 8
Right 1 Daily Off-market 31
Right for the Macula 14
Right Step 24

Letter "R" cohort across the 26-letter alphabet

Counts of products per letter. Letter "R" sits within 1753 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 "R", this is the fastest way to scan all matching products in the NIH Dietary Supplement Label Database (DSLD). The full directory contains 1,753 products under "R", 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 process. 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.

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.