2 FREE Colorsilk Buttercream @ Walgreens (4/10-16) Looking to refresh your look for summer or try a NEW color? Head to Walgreen's starting Sunday to pick up two boxes of Revlon Luxurious Colorsilk Buttercream hair color FOR FREE after stacked offers :) at Walgreens, from 4-10-4/16: Buy (2) Revlon ColorSilk Hair Color – 2/$6 Use (2) $2.00/1 Revlon Luxurious Colorsilk Buttercream View Post