Best Vitamin B6 Supplements 2026: Cost per Effective Dose
Top pick for Vitamin B6: Nutricost Vitamin B6 (Pyridoxine HCl) 25 mg (240 Capsules) — 25mg B6 per 1 capsule, $0.05/day.
Registry check · Vitamin B6
Does anyone independently verify Vitamin B6 supplements?
2 of these 12 products are confirmed in NSF/ANSI 173 and USP Verified, which puts this category in the minority with any verified option at all. The other 10 are not listed anywhere we can check — not evidence against them, only an absence of independent confirmation.
Certification is not a dosing guarantee. Across the whole catalogue, certified products reach the clinically studied dose 57% of the time and uncertified ones 71% — a gap too small to mean anything (Fisher p = 0.185). Read the Vitamin B6 dose column either way.
12 checked against all 5,317 US NSF, USP and Informed Sport listings, 2026-08-25. Full method and limitations.
What 12 Vitamin B6 labels show
Priced per day, these vitamin B6 products run $0.05 to $0.31 — a 6.2× gap between the cheapest and dearest vitamin B6 here, across 9 brands.
Which row that favours is not obvious: Nutricost Nutricost Vitamin B6 (Pyridoxine HCl) 25 mg (240 Capsules) is cheapest per serving at $0.05, but its serving sits below the median here, so part of that price gap is simply a smaller capsule.
All Vitamin B6 Supplements Compared
| Product | Brand | Dose / Serving | Cost / Day | Certification (as labelled) | Pick | Buy |
|---|---|---|---|---|---|---|
| Nutricost Vitamin B6 (Pyridoxine HCl) 25 mg (240 Capsules) | Nutricost | 25mg B6 / 1 capsule | $0.05 | None | Buy | |
| Nutricost Vitamin B6 (Pyridoxine HCl) 100 mg (240 Capsules) | Nutricost | 100mg B6 / 1 capsule | $0.05 | None | Buy | |
| NOW Vitamin B-6 (Pyridoxine HCl) 100 mg (250 Capsules) | NOW Foods | 100mg B6 / 1 capsule | $0.05 | None | Buy | |
| Solgar Vitamin B6 25 mg (100 Tablets) | Solgar | 25mg B6 / 1 tablet | $0.06 | None | Buy | |
| Nature's Bounty Vitamin B6 100 mg (100 Tablets) | Nature's Bounty | 100mg B6 / 1 tablet | $0.06 | None | Buy | |
| Nutricost P5P Vitamin B6 50 mg (240 Capsules) | Nutricost | 50mg B6 / 1 capsule | $0.07 | None | Buy | |
| Nature Made Vitamin B6 100 mg (100 Tablets, USP) | Nature Made | 100mg B6 / 1 tablet | $0.11 | USP Verified | Buy | |
| NOW P-5-P 50 mg with Magnesium (90 Capsules) | NOW Foods | 33mg B6 / 1 capsule | $0.14 | None | Buy | |
| Country Life P-5-P 50 mg (100 Tablets) | Country Life | 34mg B6 / 1 tablet | $0.15 | None | Buy | |
| Life Extension Pyridoxal 5'-Phosphate 100 mg (60 Capsules) | Life Extension | 100mg B6 / 1 capsule | $0.28 | None | Buy | |
| Pure Encapsulations P5P 50 (180 Capsules) | Pure Encapsulations | 50mg B6 / 1 capsule | $0.29 | None | Buy | |
| Thorne Pyridoxal 5'-Phosphate (180 Capsules) | Thorne | 34mg B6 / 1 capsule | $0.31 | None | Buy |
In-Depth Vitamin B6 Guides
Go deeper on vitamin B6 — by goal, by form, and what the evidence actually supports:
Our Picks
Lowest Cost: Nutricost Vitamin B6 (Pyridoxine HCl) 25 mg (240 Capsules)
25mg B6 per 1 capsule. $0.05/day. 240 servings per container at $11.95.
Nutricost Vitamin B6 (Pyridoxine HCl) 25 mg (240 Capsules) →
The shelf · Vitamin B6
These Vitamin B6 servings are not comparable to each other
Solgar Vitamin B6 25 mg (100 Tablets) states 25 mg a serving and Life Extension Pyridoxal 5'-Phosphate 100 mg (60 Capsules) states 100 mg — both occupy one row of the same price column. So Nutricost Vitamin B6 (Pyridoxine HCl) 25 mg (240 Capsules) showing 5¢ a day, the lowest here, may be reporting a smaller serving rather than a better price. Before comparing Nutricost Vitamin B6 (Pyridoxine HCl) 25 mg (240 Capsules) with Thorne Pyridoxal 5'-Phosphate (180 Capsules), check what each calls a serving.
Method: the 12 Vitamin B6 products above, compared on label facts — serving size, servings per container, form, price. Not a dosing recommendation.
The evidence · Vitamin B6
What the published reviews of Vitamin B6 concluded
- The Role of Vitamin B6 in Peripheral Neuropathy: A Systematic Review. · Nutrients, 2023
“Current scientific evidence supports a neurotoxic role of B6 at high levels. Although some studies suggest that low B6 is also a potential risk factor, further studies in this area are needed.”
- The effects of pyridoxine (vitamin B6) supplementation in nausea and vomiting during pregnancy: a systematic review and meta-analysis. · Archives of gynecology and obstetrics, 2023
“Supplementation of pyridoxine alone as well as with an active ingredient demonstrated beneficial effects for women suffering from NVP.”
- Effect of ginger in the treatment of nausea and vomiting compared with vitamin B6 and placebo during pregnancy: a meta-analysis. · The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians, 2022
“Ginger supplementation significantly relieve general NVP symptom and nausea compared with placebo, but no significant effect on vomiting. Moreover, ginger is more effective than vitamin B6 in treating NVP, although, there were no significant differences.”
- The effectiveness of vitamin B6 in reducing mastalgia: a systematic review and meta-analysis. · BMC women's health, 2025
“This meta-analysis did not demonstrate a statistically significant effect of vitamin B6 on mastalgia severity. The evidence is limited by the small number of available studies, low methodological quality, and substantial clinical and statistical heterogeneity.”
Method: PubMed searched in humans for systematic reviews and meta-analyses with Vitamin B6 in the title; these 4 of the 11 that qualified are shown with the authors’ own conclusion quoted rather than summarised. What it cannot tell you: whether Vitamin B6 will work for you — each of these reports an average across trials published 2022–2025, and null findings are shown here as readily as positive ones.
How these 12 Vitamin B6 products were ranked
2 of these 12 are confirmed in a certifier's registry — the only vitamin B6 rows where the claim is independently backed — and the rest are ranked on cost per day at the labelled serving. Commission does not enter it: the rate is the same whichever vitamin B6 you buy. Full methodology.