Checkmate is a savings app with over one million users that have saved $$$ on brands like Mac Cosmetics.
The Checkmate extension automatically applies Mac Cosmetics discount codes, Mac Cosmetics coupons and more to give you discounts on products like Extended Play Gigablack Lash Mascara.
Checkmate users have also been loving these products from Mac Cosmetics.
Users have been saving products like this to their collections.