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Vitamin B6 Supplements
Compare vitamin B6 by declared daily amount, form, cost and testing evidence. Bigger doses are not automatically better; UK guidance is particularly cautious about supplemental B6.
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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
Testing claimed
Manufacturer statement
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.
Testing evidence
Evidence status
Manufacturer COA
Manufacturer statement
Osavi certificate page for Vitamin B6, P-5-P 30 mg, lot S011122: "This supplement has been laboratory tested by an independent laboratory and meets the requirements for purity and composition."
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 site says: "We put our products to the test, ensuring maximum potency from each formula we produce" and "test each individual product to ensure it meets our strict Quality Assurance Standards." Amazon listing also says "backed by our commitment to purity and potency."
Compare declared vitamin B6, not the weight of its P-5-P compound. UK adult dietary needs are 1.2–1.4 mg/day. Our adult comparison band is 1.2–10 mg/day; NHS advises no more than 10 mg/day from supplements without medical advice. This is not a recommended supplement dose. Higher intake can damage nerves; count other B6-containing products too. Read the dose guide ↓
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.
Osavi certificate page for Vitamin B6, P-5-P 30 mg, lot S011122: "This supplement has been laboratory tested by an independent laboratory and meets the requirements for purity and composition."
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Manufacturer site says: "We put our products to the test, ensuring maximum potency from each formula we produce" and "test each individual product to ensure it meets our strict Quality Assurance Standards." Amazon listing also says "backed by our commitment to purity and potency."
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.
Manufacturer site says: "G&G focus on where raw materials come from, and investigate with extensive research and testing to verify ingredients are what they purport to be." Also: "Part of this system includes testing incoming herbal ingredients before use for microbial contamination by an independent lab" — but this is a general quality-control statement, not independently verified for this specific Vitamin B6 product.
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.
Nutravita product page for a different supplement states "Laboratory tested products" and "We are dedicated to helping you achieve your goals by making sure you have everything you need for a happier, healthier you!"; however, I did not find an independently verifiable test report or certification for this specific Vitamin B6 100mg 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.
Amazon listing and manufacturer product page both claim third-party testing, e.g. "Manufactured in a USA Based GMP Certified Facility and Third Party Tested for Purity. Guaranteed!!" and "3rd Party Lab Tested for Purity & Quality."
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Health Leads product page says the product is "ISO accredited" and the ISO page says the company "has achieved the requirements of BS EN ISO 9001:2015" and is "audited on a yearly basis"; this is a quality-system claim, not product-specific third-party testing/certification of this Vitamin B6 supplement's contents.
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.
Amazon listing image/text shows a self-asserted badge reading "LAB TESTED" on the product packaging, but I did not find an independently verifiable COA, lab report, or certifying-body registry entry for this specific product.
Laboratory
Not recorded
Certification body
Not recorded
Batch
Not recorded
Batch-specific report
Not established in this record
Report date
Not recorded
Evidence checked
2026-09-17 16:23:12
Why this score?
Testing & evidence
3/25
Ingredient/formulation quality
15/20
Value
2/20
Dose transparency
8/15
Manufacturer transparency
5/10
Label/ingredient transparency
6/10
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Lamberts’ UK-Made page says: “We ensure our tablets and capsules are made, tested and packed in the UK…” and the product page says the product is made in the UK to pharmaceutical GMP standards. I did not find an independently verifiable COA, lab report, or third-party certification 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.
Alpha01 product page says: "Alpha01® products are crafted with care in the EU... Committed to ethical standards, our products are Fair Trade, non-GMO, and adhere to all GMP food safety regulations." The page also says the product is made with "the finest quality ingredients" and that Alpha01 "guarantee[s] that each product meets rigorous standards of purity, potency, and sustainability."
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Metagenics’ quality page says: “Our products undergo rigorous testing for heavy metals, microbial contaminants, pesticides, and more” and “every ingredient and finished product undergoes rigorous testing,” but I did not find an independently verifiable COA, lab report, or registry entry for this specific Vitamin B6 product.
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Manufacturer page says: "each batch has a certificate of analysis to demonstrate low toxin levels and freshness." I did not find a product-specific COA/lab report or an independent registry/certification page for this Vitamin B6 P-5-P 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.
Lamberts Healthcare FAQ says: "90% of our products are manufactured, tested, and packed in the UK" and "Each raw material is meticulously tested before production"; the Vitamin B6 50mg product page says it is made in the UK to GMP standards. I did not find an independently verifiable COA, lab report, or third-party certification 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.
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.
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.
Vitamin B6 form
Pyridoxine HCl
Daily dose
25 mg
Testing evidence
Evidence status
Testing claimed
Manufacturer statement
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.
Vitamin B6 form
P-5-P
Daily dose
30 mg
Testing evidence
Evidence status
Manufacturer COA
Manufacturer statement
Osavi certificate page for Vitamin B6, P-5-P 30 mg, lot S011122: "This supplement has been laboratory tested by an independent laboratory and meets the requirements for purity and composition."
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Vitamin B6 form
Not disclosed
Daily dose
100 mg
Testing evidence
Evidence status
Testing claimed
Manufacturer statement
Manufacturer site says: "We put our products to the test, ensuring maximum potency from each formula we produce" and "test each individual product to ensure it meets our strict Quality Assurance Standards." Amazon listing also says "backed by our commitment to purity and potency."
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Vitamin B6 form
Not disclosed
Daily dose
50 mg
Testing evidence
Evidence status
Testing claimed
Manufacturer statement
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.
Vitamin B6 form
Pyridoxine HCl
Daily dose
100 mg
Testing evidence
Evidence status
Testing claimed
Manufacturer statement
Manufacturer site says: "G&G focus on where raw materials come from, and investigate with extensive research and testing to verify ingredients are what they purport to be." Also: "Part of this system includes testing incoming herbal ingredients before use for microbial contamination by an independent lab" — but this is a general quality-control statement, not independently verified for this specific Vitamin B6 product.
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Vitamin B6 form
Not disclosed
Daily dose
25 mg
Testing evidence
Evidence status
Testing claimed
Manufacturer statement
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.
Vitamin B6 form
Not disclosed
Daily dose
100 mg
Testing evidence
Evidence status
Testing claimed
Manufacturer statement
Nutravita product page for a different supplement states "Laboratory tested products" and "We are dedicated to helping you achieve your goals by making sure you have everything you need for a happier, healthier you!"; however, I did not find an independently verifiable test report or certification for this specific Vitamin B6 100mg 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.
Vitamin B6 form
Not disclosed
Daily dose
100 mg
Testing evidence
Evidence status
Testing claimed
Manufacturer statement
Amazon listing and manufacturer product page both claim third-party testing, e.g. "Manufactured in a USA Based GMP Certified Facility and Third Party Tested for Purity. Guaranteed!!" and "3rd Party Lab Tested for Purity & Quality."
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Vitamin B6 form
Pyridoxine HCl
Daily dose
100 mg
Testing evidence
Evidence status
Testing claimed
Manufacturer statement
Health Leads product page says the product is "ISO accredited" and the ISO page says the company "has achieved the requirements of BS EN ISO 9001:2015" and is "audited on a yearly basis"; this is a quality-system claim, not product-specific third-party testing/certification of this Vitamin B6 supplement's contents.
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Vitamin B6 form
Not disclosed
Daily dose
100 mg
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.
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Vitamin B6 form
P-5-P
Daily dose
50 mg
Testing evidence
Evidence status
Testing claimed
Manufacturer statement
Amazon listing image/text shows a self-asserted badge reading "LAB TESTED" on the product packaging, but 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.
Vitamin B6 form
P-5-P
Daily dose
20 mg
Testing evidence
Evidence status
Testing claimed
Manufacturer statement
Lamberts’ UK-Made page says: “We ensure our tablets and capsules are made, tested and packed in the UK…” and the product page says the product is made in the UK to pharmaceutical GMP standards. I did not find an independently verifiable COA, lab report, or third-party certification 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.
Vitamin B6 form
Not disclosed
Daily dose
100 mg
Testing evidence
Evidence status
No public evidence located
Manufacturer statement
Alpha01 product page says: "Alpha01® products are crafted with care in the EU... Committed to ethical standards, our products are Fair Trade, non-GMO, and adhere to all GMP food safety regulations." The page also says the product is made with "the finest quality ingredients" and that Alpha01 "guarantee[s] that each product meets rigorous standards of purity, potency, and sustainability."
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Vitamin B6 form
P-5-P
Daily dose
25 mg
Testing evidence
Evidence status
Testing claimed
Manufacturer statement
Metagenics’ quality page says: “Our products undergo rigorous testing for heavy metals, microbial contaminants, pesticides, and more” and “every ingredient and finished product undergoes rigorous testing,” but I did not find an independently verifiable COA, lab report, or registry entry for this specific Vitamin B6 product.
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Vitamin B6 form
P-5-P
Daily dose
34 mg
Testing evidence
Evidence status
Testing claimed
Manufacturer statement
Manufacturer page says: "each batch has a certificate of analysis to demonstrate low toxin levels and freshness." I did not find a product-specific COA/lab report or an independent registry/certification page for this Vitamin B6 P-5-P 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.
Vitamin B6 form
Not disclosed
Daily dose
50 mg
Testing evidence
Evidence status
Testing claimed
Manufacturer statement
Lamberts Healthcare FAQ says: "90% of our products are manufactured, tested, and packed in the UK" and "Each raw material is meticulously tested before production"; the Vitamin B6 50mg product page says it is made in the UK to GMP standards. I did not find an independently verifiable COA, lab report, or third-party certification 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.
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
Vitamin B6 form
Not disclosed
Daily dose
100 mg
Testing evidence
Evidence status
Testing claimed
Manufacturer statement
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.
Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.
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?
Adults aged 19–64 need about 1.2 mg/day (women) or 1.4 mg/day (men), normally obtainable from food. NHS advises not exceeding 10 mg/day in supplements without medical advice.
Our 1.2–10 mg comparison band is not a recommended supplement dose or a commonly studied treatment range. The lower boundary is a comparison convention, not proof a smaller supplement is inadequate alongside food. Use declared B6, not P-5-P compound weight.
B6 has established roles in metabolism and haemoglobin formation. Those roles do not prove that high-dose supplements improve wellbeing in people whose needs are already met.
Treating a confirmed nutritional problem differs from using B6 for general wellness. Research does not establish a universal dose for mood, sleep or performance.
When should you take it?
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 taking several B6-containing products
People with tingling or numbness
Pregnancy or breastfeeding
Children and people taking interacting medicines
High supplemental intake can cause peripheral neuropathy. NHS notes uncertainty about long-term safety between 10 and 200 mg/day. Stop a non-prescribed supplement and seek medical advice for new tingling or numbness; do not assume B6 deficiency is the cause.
Check B-complex, multivitamin and magnesium products for additional B6. Discuss use with a pharmacist if you take medication, particularly anticonvulsants, cycloserine or theophylline.
Who might consider it?
People with a diagnosed deficiency or a clinician-identified need may need supplementation. Symptoms alone do not identify the cause or establish the right 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 pyridoxal-5-phosphate (PLP) is commonly used to assess B6 status. A clinician should interpret results alongside supplements, symptoms and the laboratory method.
Testing evidence in this comparison
A testing claim is not the same as a verified report. No public evidence located does not mean a product has not been tested.
Testing review pending0
Recognised certification0
Verified independent evidence0
Manufacturer COA1
Testing claimed15
No public evidence located6
What does vitamin b6 cost?
Current UK comparison set, based on the daily serving shown on each label.
£0.04Lowest daily cost
£0.07Median daily cost
£0.38Highest daily cost
Your questions, answered
Is 100 mg vitamin B6 a routine UK dose?
It exceeds NHS advice for unsupervised supplements; seek individual medical advice.
Is P-5-P automatically better?
NIH does not report substantial absorption differences between supplement forms.
Can vitamin B6 cause tingling?
Excess supplemental B6 can damage nerves; seek advice rather than increasing the dose.
Why compare daily cost?
Serving frequency and pack duration can make similarly priced bottles very different value.
