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B-Complex with Metafolin L-5-MTHF is a comprehensive B supplement providing essential B vitamins and Metafolin.


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B-Complex with Metafolin L-5-MTHF

B-Complex with Metafolin by Douglas Laboratories, offers a comprehensive blend of B vitamins including pyridoxal-5-phosphate, riboflavin-5-phosphate and folate as 5-methyltetrahydrofolate (5-MTHF), the universally metabolized and biologically active form of folate designed to support cellular, cardiovascular, neurological and psychological health.


As co-enzymes, the B vitamins are essential components in most major metabolic reactions. They play an important role in energy production, including the metabolism of lipids, carbohydrates, and proteins. B vitamins are also important for blood cells, hormones, and nervous system function.

As water-soluble substances, B vitamins are not generally stored in the body in any appreciable amounts (with the exception of vitamin B-12). Therefore, the body needs an adequate supply of B vitamins on a daily basis.
Thiamin, riboflavin, and niacin are all essential coenzymes in energy production.


B-Complex with Metafolin may be useful for individuals who want to supplement with a complete array of B vitamins and related nutrients.


One vegetarian capsule contains:
Thiamine – 50 mg (Vitamin B-1, as thiamine HCL)
Riboflavin – 20 mg (Vitamin B-2, Riboflavin-5-Phosphate)
Niacin – 50 mg (Vitamin B-3, as Niacinamide)
Vitamin B-6 – 20 mg (as Pyridoxal-5 Phosphate)
Folate (as 5-MTHF, Metafolin┬«) – 400 mcg
Vitamin B-12 (as methylcobalamin) – 500 mcg
Biotin – 300 mcg
Pantothenic Acid – 50 mg (Vitamin B-5, as d-calcium pantothenate)

Suggested Use

Adults take 1 B-Complex with Metafolin L-5-MTHF capsule, one to two times daily or as directed by one of our health coaches.

Side Effects

No adverse side effects have been reported.


Store in a cool, dry place, away from direct light. Keep out of reach of children.


Douglas Laboratories

Douglas Laboratories® researches, develops and manufactures the right suite of rigorously designed, science-based, healthy aging supplements, and provides customized practice support. With a 60-year heritage of innovating and designing products to meet the needs of healthcare professionals, we push the potential of both clinical practices and patients to continually perform at their personal best, today and in the future.
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