Function: Enhance immunity Ingredients: Vitamin B6 Directions: Take two (2) capsules once a day Shipping: Ships within 48 hours on weekdays Shelf life: 2 years Immune Health, Mood, and More – Vitamin B6 helps promote a healthy immune response, keeping you ready to take on the challenges of the outside world. This essential vitamin helps improve mood. And thanks to its aforementioned effects on homocysteine, vitamin B6 can also boost brain health. Good for the stomach, helps with anxiety and sleep.