Trophic's High Potency Vitamin B Complex is a complete preparation that has established itself as an industry leader. The B complex is a family of essential water-soluble vitamins that complement each other synergistically. In general, the majority of B vitamins work as enzymes, efficiently using food ingested by the body to convert it into energy. B vitamins are thought to help alleviate fatigue and stress. B vitamins are integral to tissue development and growth.