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Vitamin B6 Supplements
Compare vitamin B6 supplements using the Supplement Facts amount, daily serving, price and testing evidence. A high %DV is not proof of greater benefit.
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Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Testing evidence
Evidence status
Recognised certification
Manufacturer statement
NSF registry confirms HARD EIGHT NUTRITION LLC DBA BulkSupplements.com is listed under NSF/ANSI Standard 173 (Dietary Supplements), and the company page links to BulkSupplements.com.
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Testing evidence
Evidence status
Recognised certification
Manufacturer statement
NSF registry confirms HARD EIGHT NUTRITION LLC DBA BulkSupplements.com is listed under NSF/ANSI Standard 173 (Dietary Supplements), and the company page links to BulkSupplements.com.
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Testing evidence
Evidence status
Testing claimed
Manufacturer statement
Manufacturer product page says "Lab Tested" and the bottle image shows a "GMP" seal, but no independent lab report or certification for this specific product was found.
This compares the actual vitamin B6 amount on the label, not the weight of an ingredient like P-5-P. US adults need 1.3 mg a day up to age 50, rising to 1.5-1.7 mg after that. The US safety ceiling for supplements is 100 mg a day. Note that UK guidance is far stricter (just 10 mg) because of nerve-damage concerns at lower doses - if you're comparing to UK-labelled products, that reflects a different country's safety guidance, not a difference in product quality. Food and other supplements count towards your total too. Read the dose guide ↓
NSF registry confirms HARD EIGHT NUTRITION LLC DBA BulkSupplements.com is listed under NSF/ANSI Standard 173 (Dietary Supplements), and the company page links to BulkSupplements.com.
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
NOW Foods Certificate of Analysis page states: "A COA confirms that the product you purchased has gone through detailed testing and adheres to its product specifications and NOW standards."
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Manufacturer site says the product is "Lab Tested" and iHerb lists it as "GMP Certified"; however I did not find an independently verifiable COA or a certifying-body registry entry for this specific product.
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Manufacturer product page says the product is "Lab Tested". I did not find any publicly accessible COA/lab report or any independent certification registry entry for this specific Vitamatic Vitamin B6 50 mg product.
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
USP Quality Supplements registry lists "Nature Made Vitamin B6 100 Mg Tablets" under USP Verified Products, and Nature Made’s product page states "United States Pharmacopeia (USP) Verified" and "USP has tested and verified ingredients, potency and manufacturing process."
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
NOW Foods’ COA portal states: “A COA confirms that the product you purchased has gone through detailed testing and adheres to its product specifications and NOW standards.”
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Nature's Truth’s own “Our Quality” page says: “Our facilities and operations undergo random audits by the U.S. Food & Drug Administration, as well as independent third party entities, to verify safety and quality. We guarantee our certification for the following: … Global Retailer and Manufacturer Alliance (GRMA) Certified through NSF.”
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Manufacturer product page states: "3rd Part Lab Tested - Our All Best Naturals Products come with 3rd Party Independent Lab Tested" and the Amazon images also say "3rd Party Lab Tested." I did not find an independently verifiable COA, lab report, or certifying-body registry entry for this specific product.
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Windmill’s product page says: “All Windmill supplements are manufactured in the United States in an FDA-inspected facility whose cGMP (current Good Manufacturing Practice) are independently verified by qualified certification organizations.”
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Manufacturer product page says "Lab Tested" and the bottle image shows a "GMP" seal, but no independent lab report or certification for this specific product was found.
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Manufacturer/product pages state: "3rd Party Lab Tested for Purity & Quality" and "Purity & Potency Guaranteed"; the Amazon listing image also says "3rd Party Lab Tested." I did not find an independently verifiable COA, lab report, or certifying-body registry entry for this specific product.
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Natures Aid says: “All products are subjected to a strict quality assurance system put in place by our on-site laboratory, to test each product at every stage: from raw material to finished product.”
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
ConsumerLab’s Bluebonnet brand page says: “4 products from Bluebonnet were tested and reviewed by ConsumerLab, with 3 products Approved for quality of which 2 are Top Picks.” This is a brand-level testing claim, but I did not find an independently verifiable product-specific COA or registry entry for Bluebonnet Nutrition Vitamin B 6 100 mg, 60 Vegetable Capsules.
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Manufacturer/retailer pages state: "3rd Party Lab Tested for Purity & Quality" and "Every batch is independently tested for purity, potency, and product consistency."
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Amazon listing image/text shows: "Certifications Matter" and "Intertek GMP certification means that every aspect of the NOW supplement manufacturing process has been audited, including our laboratory/testing methods (for stability, potency, and product formulation)." Also NOW's COA page states: "A COA confirms that the product you purchased has gone through detailed testing and adheres to its product specifications and NOW standards."
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Solgar’s UK product page says only marketing language such as “SCIENCE BACKED FORMULAS” and “The passion and commitment of those who buy Solgar has not changed in over 75 years,” but I did not find an independently verifiable testing/certification claim for this specific Vitamin B6 product. NSF search results surfaced a generic certified-products page, but the specific NSF listing page I opened did not show Solgar Vitamin B6 product details or a confirmed pass for this item.
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
NSF registry confirms HARD EIGHT NUTRITION LLC DBA BulkSupplements.com is listed under NSF/ANSI Standard 173 (Dietary Supplements), and the company page links to BulkSupplements.com.
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
NOW Foods Certificate of Analysis page states: "A COA confirms that the product you purchased has gone through detailed testing and adheres to its product specifications and NOW standards."
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Manufacturer site says the product is "Lab Tested" and iHerb lists it as "GMP Certified"; however I did not find an independently verifiable COA or a certifying-body registry entry for this specific product.
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Manufacturer product page says the product is "Lab Tested". I did not find any publicly accessible COA/lab report or any independent certification registry entry for this specific Vitamatic Vitamin B6 50 mg product.
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
USP Quality Supplements registry lists "Nature Made Vitamin B6 100 Mg Tablets" under USP Verified Products, and Nature Made’s product page states "United States Pharmacopeia (USP) Verified" and "USP has tested and verified ingredients, potency and manufacturing process."
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
NOW Foods’ COA portal states: “A COA confirms that the product you purchased has gone through detailed testing and adheres to its product specifications and NOW standards.”
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Nature's Truth’s own “Our Quality” page says: “Our facilities and operations undergo random audits by the U.S. Food & Drug Administration, as well as independent third party entities, to verify safety and quality. We guarantee our certification for the following: … Global Retailer and Manufacturer Alliance (GRMA) Certified through NSF.”
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Manufacturer product page states: "3rd Part Lab Tested - Our All Best Naturals Products come with 3rd Party Independent Lab Tested" and the Amazon images also say "3rd Party Lab Tested." I did not find an independently verifiable COA, lab report, or certifying-body registry entry for this specific product.
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Windmill’s product page says: “All Windmill supplements are manufactured in the United States in an FDA-inspected facility whose cGMP (current Good Manufacturing Practice) are independently verified by qualified certification organizations.”
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Manufacturer product page says "Lab Tested" and the bottle image shows a "GMP" seal, but no independent lab report or certification for this specific product was found.
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Manufacturer/product pages state: "3rd Party Lab Tested for Purity & Quality" and "Purity & Potency Guaranteed"; the Amazon listing image also says "3rd Party Lab Tested." I did not find an independently verifiable COA, lab report, or certifying-body registry entry for this specific product.
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Natures Aid says: “All products are subjected to a strict quality assurance system put in place by our on-site laboratory, to test each product at every stage: from raw material to finished product.”
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
ConsumerLab’s Bluebonnet brand page says: “4 products from Bluebonnet were tested and reviewed by ConsumerLab, with 3 products Approved for quality of which 2 are Top Picks.” This is a brand-level testing claim, but I did not find an independently verifiable product-specific COA or registry entry for Bluebonnet Nutrition Vitamin B 6 100 mg, 60 Vegetable Capsules.
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Manufacturer/retailer pages state: "3rd Party Lab Tested for Purity & Quality" and "Every batch is independently tested for purity, potency, and product consistency."
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Amazon listing image/text shows: "Certifications Matter" and "Intertek GMP certification means that every aspect of the NOW supplement manufacturing process has been audited, including our laboratory/testing methods (for stability, potency, and product formulation)." Also NOW's COA page states: "A COA confirms that the product you purchased has gone through detailed testing and adheres to its product specifications and NOW standards."
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Solgar’s UK product page says only marketing language such as “SCIENCE BACKED FORMULAS” and “The passion and commitment of those who buy Solgar has not changed in over 75 years,” but I did not find an independently verifiable testing/certification claim for this specific Vitamin B6 product. NSF search results surfaced a generic certified-products page, but the specific NSF listing page I opened did not show Solgar Vitamin B6 product details or a confirmed pass for this item.
One-time purchase prices; delivery and conditional discounts excluded. Daily cost uses the recorded label serving. Comparison amounts are not personal dose recommendations. Unknown Prime eligibility is not treated as confirmed.
Vitamin B6 forms explained
Compare the declared vitamin B6 amount; a compound-weight headline can be different.
Pyridoxine HCl
Common supplemental form
Chemical name
Pyridoxine hydrochloride
Comparison
Declared vitamin B6 in mg
A recognised B6 source; our formulation score does not assume P-5-P absorbs better.
P-5-P
Coenzyme form
Chemical name
Pyridoxal-5-phosphate
Comparison
B6 amount, not compound mass
NIH reports no substantial absorption difference among supplement forms.
Mixed forms
More than one B6 form
Amount
Total declared B6
Disclosure
Check the ingredient list
Do not add a compound-weight headline to an already declared B6 total.
How much vitamin B6 is in your daily serving?
US RDAs are 1.3 mg/day at ages 19–50; at 51+, 1.5 mg for women and 1.7 mg for men. Pregnancy and lactation needs differ. The adult UL is 100 mg/day from all sources, not a supplement target.
Our comparison band spans 1.3 to below 100 mg; a 100 mg supplement already reaches the UL before food. Lower-dose products may complement food adequately. NIH notes that other authorities use lower limits.
Evidence does not establish general cognitive improvement from B6 supplements. Pregnancy nausea is a separate clinical use: discuss treatment with your prenatal clinician.
Follow the verified product directions. Where the label specifies food, compare on that basis; this directory does not establish an ideal time of day.
Vitamin B6 side effects and excess intake
Who should be cautious?If any of the following apply to you, speak to a healthcare professional before taking Vitamin B6 - see the full detail below for why.
People combining B6-containing supplements
People with new sensory symptoms
Pregnancy or lactation
Children and people taking interacting medications
Long-term high supplemental B6 can cause nerve damage. Water solubility does not make unlimited intake safe. New tingling or numbness warrants medical advice; do not self-treat it with more B6.
Add up B6 from multivitamins, B-complex and combination products. Antiepileptic medicines, cycloserine and theophylline need professional interaction review.
A clinician can assess suspected deficiency, malabsorption or another specific indication. Pregnancy treatment needs an individualized plan rather than a high-strength retail dose.
Testing & quality: what to look for
Check whether evidence identifies the actual product and, for a COA, the batch. A factory-quality claim does not establish an independent result for this bottle. Unverified claims remain distinct from recognised certification.
Blood tests and vitamin B6 status
Plasma PLP is a common status marker. Interpretation depends on clinical context; a result is not a stand-alone supplement prescription.
