Alcohol inks are fast-drying, waterproof, highly-pigmented, alcohol-based inks that are great to use on a variety of surfaces. These are dye-based colors (as opposed to pigment-based) that are flowy and transparent. Due to this nature, users are able to create unique and versatile effects that cannot be achieved with water-based products like acrylic paint. Once applied onto a surface and dried, alcohol inks can be reactivated with alcohol and can be moved again (just like watercolors can be reactivated again by adding water).