NEUROTRANSMITTER SUPPORT - Vitamin B-6 is involved in important functions in the body including the manufacturing of brain chemicals known as neurotransmitters.* BIOAVAILABLE - This phosphorylated form of vitamin B-6 is the most bioavailable form of this critical nutrient.* PLUS VITAMIN C - This product contains an additional 250 mg of vitamin C.* PURITY, QUALITY, POTENCY - No fillers, binders, preservatives, artificial colors or flavors. Vegetarian capsules. No gluten, egg, peanuts, tree nuts, or magnesium stearate. Supplements arrive in BPA-Free, recycled amber bottles that protect from light contamination. PHYSICIAN'S CHOICE - The health care professional's choice for high-quality supplements since 1984. We base our products on the latest wellness research and clinical studies, and use third-party testing for all incoming, in-process, and finished product. Products you can trust, at an exceptional value.