Vitamin B6

Vitamin studied for neurotransmitter synthesis, pms comfort, homocysteine support. How it works, the dose and timing studied, what it interacts with, and the research behind the grade.

Grade B evidence moderate: promising but smaller or mixed human trials Also known as Pyridoxine, P5P
All compounds
Best for Neurotransmitter synthesis, PMS comfort, Homocysteine support
Typical dose 1.3–2 mg (RDA); therapeutic uses up to ~50 mg
Timing Any time; with or without food
Category Vitamin
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What it is and the mechanism

Its active form, pyridoxal-5-phosphate, is a cofactor for over 100 enzymes, including those that synthesize serotonin, dopamine, and GABA, and that metabolize homocysteine and amino acids.

When and how much to take

The dose below reflects the range used in published research. Match the form alongside the milligrams. Set your own wake and bed times to map the timing onto your day.

When to take Vitamin B6

Dose: 1.3–2 mg (RDA); therapeutic uses up to ~50 mg. Set your own wake and bed times to map the guidance onto your day.

12a6a12p6pDAY1 dose
12 pmAnytime. Timing is flexible. Pick a slot you can keep consistent.

These statements have not been evaluated by the Food and Drug Administration. This information is not intended to diagnose, treat, cure, or prevent any disease.

Interactions and cautions

Read these before combining this with other supplements or medication. The risk is rarely the headline, it is the interaction you did not check.

Interactions
  • Levodopa (without carbidopa), reduces efficacy
  • Some anticonvulsants, may lower B6
Cautions
  • Chronic high doses (>100 mg/day) can cause peripheral neuropathy
  • Use the lowest effective dose

What pairs well, and what to keep apart

Derived from shared topics, complementary categories, and the interaction list. Introduce one compound at a time so you can tell what works.

Keep apart from

No direct compound conflicts derived. Still check the interactions list above against your medication.

Compounds in the same topics

Often considered alongside this one. Each carries its own evidence grade.

More compounds for hormones & metabolism

Other compounds studied for hormones & metabolism, strongest human evidence first.