Instantly dissolve and remove any progressive ink markings with the industry's most widely used solution. All Off Marking Ink Remover is safer than caustic Acetone and will never ruin Polycarbonate Lenses. Simply apply with a swab, cloth or even dip into solution for 2 seconds. All Off Marking Ink Remover is our customer's choice for ink removal. It is used by more labs than any other marking ink remover in the world. All Off Marking Ink Remover is the winner of the Optical Laboratories Association Award of Excellence (OLA).