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Supplements: X

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157 supplements starting with "X"

Showing 1–50 of 157

Product Ingredients
X The Ultimate Brain Performance Enhancer 27
X-Factor 250 mg 6
X-Factor Gold Concentrated Butter Oil 8
X-Factor Gold Concentrated Butter Oil Butter Pecan 7
X-Factor Gold Concentrated Butter Oil Raspberry 7
X-Factor Gold Concentrated Butter Oil Unflavored 6
X-Factor Gold High Vitamin Butter Oil Off-market 7
X-Gels 250 mg 7
X10 Boost Keto ACV Gummies 24
X500 German Chocolate Flavor Off-market 43
Xanthium Relieve Surface Off-market 16
Xanthohumol 150 mg 3
XanthOmega Krill Oil 13
Xanthoparmelia 450 mg 3
Xanthoparmelia 450 mg 10:1 Extract 3
Xanthoparmelia 450 mg 12:1 Extract 3
Xcelerate Stack 3 10
Xcelerate Watermelon Berry 28
Xcellent A 3000 Off-market 5
Xcellent A 7500 Off-market 5
Xcellent E HG-400 Off-market 9
XCraving Formula Off-market 12
xEO Mega Essential Oil Omega Complex Off-market 17
XeTRM Crisp Apple Flavor 25
XeTRM Wild Berry Flavor 24
XFactor Kids Tropical Splash 33
Xi Guan Jie Tong Pian KneeKinder 200 mg 21
Xi Yang Shen Alcohol Free 3
Xi Yang Shen Sugar Free 4
Xi Yang Shen Sugar Free Alcohol Free 3
Xia Ku Cao Sugar Free 4
Xia Ku Cao Sugar Free Alcohol Free 3
Xian Ling Pi Sugar Free 4
Xian Ling Pi Sugar Free Alcohol Free 3
Xian Mao Sugar Free 4
Xiang Sha Liu Jun Zi Pian Stomakinder 200 mg 12
Xiang Sha Yang Wei Wan Off-market 18
Xiang Yin Pian VoiceGold 200 mg 11
Xiao Chai Hu Pian Bupleuri Relaxe 200 mg 11
Xiao Chai Hu Teapills Xiao Chai Hu Wan Off-market 9
Xiao Feng Pian Skin WindClear 200 mg 16
Xiao Huo Luo Pian MeridianClear 200 mg 10
Xiao Huo Luo Teapills 12
Xiao Huo Luo Teapills Xiao Huo Luo Wan Off-market 10
Xiao Yao Pian EaseTonic 200 mg 12
Xiao Yao Wan EaseTonic 200 mg 12
Xin Yi Alcohol Free 3
Xin Yi Sugar Free 4
Xin Yi Sugar Free Alcohol Free 3
Xing Ren Non-Alcohol 3

Letter "X" cohort across the 26-letter alphabet

Counts of products per letter. Letter "X" sits within 157 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 "X", this is the fastest way to scan all matching products in the NIH Dietary Supplement Label Database (DSLD). The full directory contains 157 products under "X", 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.

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.