Private label manufacturer Mana is rolling out its own proprietary brand to consumers. Billed as being at the intersection of haircare and cosmetics, the new line called Hush is launching with two DIY haircolor products that will be sold exclusively at Sephora and QVC.   “Mana is known for making products for some of the world's biggest beauty brands. This gives us a unique insight into what people want but are unable to find on shelves,” said Emma Froelich-Shea, general manag...