Hair supplementation is a growing business. Nutrafol, the fastest rising nutraceutical supplement for healthy hair growth for men and women, has closed its series A financing round with Unilever Ventures acting as lead investor after an initial introduction from investment platform CircleUp. Frustrated by poor results and undesirable side effects from a leading pharmaceutical drug, Nutrafol’s co-founders challenged the science behind conventional hair loss solutions. In 2015 they teamed up wi...