Established 1971 Certified Gluten-Free With (6S)-5-Methyltetrahydrofolate Supports Energy Dietary Supplement Quatrefolic Certified B Corporation Kosher Coenzyme B-Complex contains essential B vitamins in its active, "coenzymated" form. This complex that you've known and loved for over 15 years includes Methylfolate (Quatrefolic) - the most advanced form currently available. And as always, you don't need to worry about the typical Vitamin B taste or odor. -Our Pledge of Integrity- Authenticity Cleanliness Freshness Consistency Accuracy