Following a series of Instagram teases dating to May, Beyoncé officially launched her self-funded hair-care line Cécred (pronounced like âsacredâ) on Feb. 20.This isnât the megastarâs first foray into beauty and fashion. She introduced ready-to-wear line House of Deréon with her mother in 2006, Ivy Park athleisure in 2016, and several fragrances of which the latest, an eau…