Walk down any supplement aisle and you’ll see dozens of B vitamins — B12 alone, B6 capsules, “energy blends,” and more. But according to neuroscientist Robert Love, not all B supplements are created ...

When it comes to grades, vitamin B get an A+ for the benefits. There’s biotin (B 7), which can help with healthy, strong hair; as well as niacinamide (a derivative of B 3, or niacin), which helps to ...