mineral

Boron supplements

Half of the 3,339 boron supplements in the NIH label database that print an amount list 1 mg or less per serving; the middle half list 0.3 mg to 2 mg, and 1 in 302 of the 3,322 with a plausible amount give more than the adult upper limit at the most servings their labels direct (DSLD version 9.4.0, January 2026). The 38 products whose only supplement ingredient is boron list a median of 3 mg, and 1 in 38 of them give more than the upper limit.

How much boron do supplements contain?

The median product lists 1 mg per serving. One in ten lists 0.15 mg or less, one in ten 3 mg or more. The amount printed most often is 1 mg (708 products).

How do the amounts compare with the Daily Value and the upper limit?

The adult Tolerable Upper Intake Level is 20 mg a day (total intake from food, water and supplements). At the most servings their labels direct, 11 of the 3,322 products with a plausible amount (0.3%) give more than that from the supplement alone (what counts as plausible).

The upper limit is for total intake from food, water and supplements unless stated, and does not apply under medical supervision. A label amount is what the maker printed. This is data, not advice: the NIH ODS fact sheets explain what each nutrient does.

Which products list the most boron?

On-market products, per serving, with a plausible amount: the rule leaves out likely entry slips, such as an amount far beyond every other label with no %DV or strength on the label to back it (each product page still shows its own amount, marked).

• Cal/Mag/Zinc ComplexNature's Life100 mg
• EcdyvarIllicit Labs100 mg
• 50+ Women's DailyecoNugenics38 mg
• Bio Boron 30 mgPure TheraPro Rx30 mg
• Mega+ MultivitaminFeel Great Vitamin Co.27 mg
• Muscle RecoverySignature Supplements25 mg
• CalciumVitabase20 mg
• Super 1 DailyCarlson20 mg

Have the amounts changed over the years?

Products whose current label entered DSLD in 2011 list a median of 1 mg; those entered in 2025, 1 mg.

In which products and brands?

Brands listing it most: Douglas Laboratories (176), Nature's Way (71), Trace Minerals Research (66), ProCaps Laboratories (50), Life Extension (47), Thorne Research (43), GNC Women's Ultra Mega (43), Country Life (42), Pure Encapsulations (41), GNC Mega Men (40).

Every product listing boron

3,916 products, A to Z by name (page 36 of 79), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.

• Male ComplexNature's Answer0.05 mg
• Male EnhancementKip Solutions · off the marketin a blend
• Male EnhancementMalemaxin a blend
• Male EnhancementAlpha Male Nutritional · off the marketin a blend
• Male HealthLES Labs4 mg
• Male IgniteGolden After 5010 mg
• Male LongevityVitarol · off the market3 mg
• Male MultinutrientBioCare1 mg
• Male MultipleSolgar0.25 mg
• Marine Coral Calcium ComplexCORALadvantage · off the market2 mg
• Master FormulaPrimal Blueprint2 mg
• Maternal SymmetryVitanica1 mg
• MatrixxAllergy Research Group2.4 mg
• Mature FormulaBronson Laboratories · off the market0.2 mg
• Mature FormulaBronson0.2 mg
• Mature Formula Multivitamin & MineralBronson0.2 mg
• Mature Formula without IronBronson0.2 mg
• Mature MultiSimply Right · off the market0.15 mg
• Mature MultiTN Trusted Nutrients0.15 mg
• Mature MultiKirkland Signature · off the market0.15 mg
• Mature Multi Adult 50+Kirkland Signature · off the market0.15 mg
• Mature Multi Vitamins & MineralsKirkland Signature · off the market0.15 mg
• Max BrainXYMOGEN0.5 mg
• Max For Men Iron FreeCountry Life1 mg
• Max For Men Multivitamin & Mineral Complex Iron-FreeCountry Life · off the market1 mg
• Max For Men Multivitamin & Mineral Iron-FreeCountry Life · off the market1 mg
• Max For VegansCountry Life1 mg
• Max For WomenCountry Life1 mg
• Max for Women Iron FreeCountry Life1 mg
• Max For Women With IronCountry Life1 mg
• Max Multi Men'sMM Sports Nutrition2 mg
• Max Multi Women'sMM Sports Nutrition2 mg
• MaxHealthTaylor MD Formulations0.5 mg
• Maxi MultiHigher Nature1 mg
• Maxi OneBluebonnet1 mg
• Maxi One Iron-FreeBluebonnet1 mg
• Maxi TwoBluebonnet2 mg
• Maxi Two Iron-FreeBluebonnet2 mg
• Maximin PackNature Made0.15 mg
• MaximumBayer One A Day0.15 mg
• Maximum Bone FormulaVitaCeutical Labs · off the market0.5 mg
• Maximum Bone-AidViva Vitamins3 mg
• Maximum FoodInnate Response Formulas0.5 mg
• Maximum FormulaTop Care0.15 mg
• Maximum Nutrition BerryGNC Ultra Mega Green1 mg
• Maximum Nutrition Milk ChocolateGNC Women's Ultra Mega2 mg
• Maximum Nutrition Milk ChocolateGNC Mega Men2 mg
• Maximum Nutrition Vanilla BeanGNC Mega Men2 mg
• Maximum Nutrition Vanilla CremeGNC Women's Ultra Mega2 mg
• Maximum Strength Impressex Aphrodisiac Sexual EnhancerNature's Answer0.227 mg

Where next?

• Check an amount of boron
• Labels above the upper limit
• All ingredients