Browse Evergreen's vitamin B6 available in liquid and capsule format. Vitamin B6 - also referred to as pyridoxine, pyridoxamine, and pyridoxal - is one of the eight essential B vitamins. Vitamins B6 plays an essential role in keeping your liver, skin, hair, and eyes healthy and is essential for the nervous system to help it function properly. Vitamin B6 is required for normal brain development and function. It also helps the body make the hormones serotonin and norepinephrine which helps to regulate the body clock.