Great on tile and grout. only for white clothes. Bleach Pen Gel works great on:Food stains,Beverage stains,Tile, ... Grout, aulking,Porcelain2oz instant bleach pen (stain remover pen ) Introduction: 1. Instant stain remover pen ... CLOROX!This products is not produced by clorox!!!! 2 Oz Bleach Pen Gel