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Head-to-head evidence comparison — which supplement is right for you?
Vitamin B6 vs Vitex: Vitamin B6 has the stronger overall evidence (7 vs 7/10); they're alternatives for support mood — the best pick depends on your goals. Take the 60-second quiz for a pick tailored to your goals.
Vitamin B6 wins 2 of 3 categories. Both are solid choices — the best pick depends on your specific goals.
Verdict
Too few graded studies
1 of 2 studies with measurable effects showed benefit.
Top outcomes
Verdict
Likely helps
3 of 4 studies with measurable effects showed benefit.
Top outcomes
Shared outcomes (2)
Outcomes where both Vitamin B6 and Vitex have evidence — compare verdict strength side-by-side.
10-12mg daily (12 mg/day is the EU upper limit. Labels often give 25-100 mg, above it)
Morning with food, Can take with other B vitamins
P-5-P (Pyridoxal-5-Phosphate)
20-40mg extract (standardized to 0.5% agnuside). The cited trials used 20 to 30 mg of extract a day.
Morning, Consistently at same time daily
Standardized extract (0.5% agnuside or 0.6% aucubin)
and 1 more not shown
2-4 weeks
1-2 cycles
Months of high doses
1-3 cycles
2-3 cycles
1-2 cycles
Dosage exploration of combined B-vitamin supplementation in stroke prevention: a meta-analysis and systematic review
The American journal of clinical nutrition (2024) · Meta analysis · n=76664
In areas without and with partial folic acid fortification, combined B-vitamin supplementation significantly reduced the risk of stroke by 34% [RR: 0.66; 95% confidence interval (CI): 0.50, 0.86] and 11% (RR: 0.89; 95% CI: 0.79, 1.00), respectively.
Vitamin and mineral supplementation for maintaining cognitive function in cognitively healthy people in mid and late life
The Cochrane database of systematic reviews (2018) · Meta analysis · n=83000
28 trials with more than 83,000 participants. 14 trials with 27,882 participants compared folic acid, vitamin B12, vitamin B6, or a combination of these to placebo.
Drug Efficacy in the Treatment of Antipsychotic-Induced Akathisia: A Systematic Review and Network Meta-Analysis
JAMA network open (2024) · Meta analysis · n=492
No association between effect sizes and psychotic severity was found.
Vitex agnus-castus in premenstrual syndrome: A meta-analysis of double-blind randomised controlled trials
Complementary Therapies in Medicine (2019) · Meta analysis · n=520
Out of 21 clinical trials, three double-blind placebo-controlled studies (520 females) met the reporting criteria, testing the characterised extracts Ze 440 and BNO 1095.
Herbal medicine for depression and anxiety: A systematic review with assessment of potential psycho-oncologic relevance
Phytotherapy research : PTR (2018) · Systematic review
Overall, 45% of studies reported positive findings with fewer adverse effects compared with conventional medications.
A Critical Approach to Evaluating Clinical Efficacy, Adverse Events and Drug Interactions of Herbal Remedies
Phytotherapy research : PTR (2016) · Review
A critical narrative review of published systematic reviews and meta-analyses of herbal remedies. It pools no data of its own.
The points come from one dose-finding RCT of the Ze 440 extract in 162 women with PMS over three cycles, at 8, 20 or 30 mg a day (PMID 23022391). Total symptom scores improved more at 20 mg than with placebo or 8 mg, and 30 mg did not improve them further than 20 mg, so the curve is flat above 20 mg. All three doses were well tolerated, and no higher dose of this extract was tested. A meta-analysis of 3 trials of characterised extracts (Ze 440, BNO 1095; 520 women) found Vitex users 2.57 times more likely to remit (PMID 31780016). A broader pooled effect was large but rated explorative because of high risk of bias, heterogeneity (I² 91%) and publication bias (PMID 28237870).
AI-estimated from published studies. Interpret as directional guidance.
Vitamin B6 has a higher evidence score (7/10 vs 7/10) and wins in 2 of 3 categories.
For support mood, Vitex has a higher relevance score (90 vs 75).
No documented interaction was found in the data searched. This does not establish that this exact combination is safe.
The right pick depends on your goals. Answer a few quick questions for a personalised recommendation — or dig into the full evidence on each.