THORNE 5-MTHF 1 mg, Active Methylfolate Vitamin B9 Supplement, 60 Capsules | Supports Methylation, Healthy Homocysteine Levels, Heart & Brain Health, Fetal Development, Mood & Nervous System Health*

Healthy Methylation. Provides essential nutritional support in the form of bioactive, methylated folate (vitamin B9) to support the body's methylation cycle*

Cognitive Support. Enhances the production of key neurotransmitters like serotonin, melatonin, dopamine, and other natural brain chemicals that regulate brain function and mood*

Nerves & Circulation. Supports healthy blood vessel and nerve function, and supports healthy fetal brain development during pregnancy*

4 Rounds of Testing. Our state-of-the-art laboratories enable us to conduct 4 rounds of testing on every product, from analyzing the purity of raw materials to confirming the shelf life of finished formulas

Trusted. Thorne is trusted by 100+ professional sports teams and the #1 most recommended clinical brand by consumers and health-care practitioners (Based on a 2026 independent survey of US supplement consumers and health-care practitioners)