Sundial Brands, the Amityville, NY-based skin care and hair care manufacturer, has created Madam C.J. Walker Beauty Culture, a new prestige hair care line named for the entrepreneur and philanthropist who became one of America's first female self-made millionaires. The four-collection, 25 SKU line will launche exclusively in Sephora stores and on Sephora.com on March 4.   The line consists of four collections that address the cleansing, treatment and styling needs of all hair textures. Th...