B Complex — Complete, Clinically Dosed B Vitamins in Their Active, Bioavailable Forms
B vitamins are foundational to how the body produces energy, supports neurological function, and maintains mood balance. Priority One's B Complex delivers every B vitamin in its active, coenzyme form — the forms your body can use directly, without requiring additional metabolic conversion steps.
What's inside and why it matters
Methylcobalamin (Vitamin B12) — The active, coenzyme form of B12. Many supplements use cyanocobalamin, a synthetic form that requires conversion before the body can utilise it. Methylcobalamin is provided in a form that is ready for use, supporting healthy nerve function, red blood cell formation, and normal homocysteine metabolism.*
L-5-Methyltetrahydrofolate (Active Folate) — The biologically active form of folate, as opposed to folic acid found in most mass-market supplements. L-5-MTHF supports DNA synthesis, cellular repair, and healthy neurotransmitter production.*
Pyridoxine (B6) — Plays an important role in amino acid metabolism and supports the body's normal synthesis of neurotransmitters including serotonin and dopamine.*
Thiamine (B1) & Riboflavin (B2) — Essential cofactors for normal cellular energy production, supporting the conversion of carbohydrates and fats into ATP.*
Pantothenic Acid (B5) — Supports adrenal function and the synthesis of coenzyme A, which is required for normal energy metabolism.*
Biotin (B7) — Supports healthy metabolism of fats, carbohydrates, and proteins, and plays a role in normal gene expression.*
Inositol — Supports healthy cellular signalling, mood balance, and normal nervous system function.*
PABA (Para-Aminobenzoic Acid) — Supports red blood cell formation, normal protein metabolism, and healthy folate utilisation.*
Why active forms matter
The forms of vitamins used in a supplement affect how readily the body can utilise them. Cyanocobalamin and folic acid are widely used in lower-cost formulas but require metabolic conversion before they become active in the body. Priority One uses methylcobalamin and L-5-methyltetrahydrofolate — forms that are already in their active state at the point of absorption, requiring no additional conversion steps.
At a glance — what this formula supports
- Normal cellular energy production and reduction of occasional fatigue*
- Healthy cognitive function and neurotransmitter balance*
- Nervous system health and normal stress response*
- Healthy homocysteine metabolism as part of normal cardiovascular function*
- Red blood cell formation*
- Adrenal function during periods of occasional stress*
- Mood balance and emotional wellbeing*
Quality you can verify
Every batch of B Complex is manufactured in a GMP-certified facility, non-GMO, and third-party tested for purity and potency. A Certificate of Analysis is available for download.
60 vegetarian capsules per bottle.
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Warnings
WARNING: If you are pregnant or breastfeeding, consult your physician before using this product.
Testing
Click here to download C.O.A. Lot #U041A DOM Dec 2025
