NOW Foods Vitamin B-50 Complex delivers a complete, balanced B-vitamin complex with each of the eight essential B vitamins at 50 mg or mcg per serving — providing a moderate, sustained-release level of B-vitamin support ideal for daily maintenance. The B-vitamin complex works as an interconnected team: B1 (thiamine) supports nerve function and energy metabolism; B2 (riboflavin) is essential for cellular energy production; B3 (niacin) supports cardiovascular health; B5 (pantothenic acid) is critical for adrenal function; B6 (pyridoxine) supports neurotransmitter synthesis; biotin supports metabolism and hair health; folate supports DNA synthesis and methylation; and B12 supports neurological function and red blood cell formation. NOW Foods uses active forms where possible and manufactures in their own GMP-certified facility with batch testing for potency and purity.