Vitamin B Complex is essential for various metabolic processes in body and plays an important role in providing resistance against various infections by boosting immune system. It is said to be the most important part of multivitamin capsules, health supplements, & various protein powders. This complex is required for synthesis of various amino acids in body that are required for building muscle mass & providing energy. It is known to help in fighting depression, maintaining mental peace, & improving cognitive function. Vitamin B Complex is water soluble in nature and required for synthesis of DNA as well.