Doctor’s Best Fully Active B-Complex with Quatrefolic delivers all eight B vitamins in a single vegetarian capsule, with each form selected for its absorption characteristics. The folate is supplied as Quatrefolic — the glucosamine salt of (6S)-5-methyltetrahydrofolate — chosen for its water solubility and stability compared with standard folic acid. B12 is present as methylcobalamin, while B2 and B6 each appear in both their standard and coenzyme (phosphate) forms. The formula also includes Vitamin C (40 mg), B1 (60 mg), B2 (75 mg), B3 (50 mg), B6 (50 mg), folate (400 µg), B12 (1000 µg), Biotin (600 µg), and Pantothenic Acid (100 mg) per capsule.
The product is certified non-GMO, gluten free, and soy free, and the vegetarian capsule shell makes it suitable for those following a vegan diet. Doctor’s Best is a well-regarded US supplement brand with a science-focused formulation philosophy.
Each pack contains 60 vcaps. The formula will appeal to those who prefer active or coenzymated B vitamin forms, including vegans and vegetarians who rely on a reliable dietary source of B12 and folate.




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