Liquid Magics citrus cleaner works on a d-limonene based lifting agent, which gets into the pores of a material to lift and remove anything which is not permanently bonded. If your stain contains permanent dyes such as: hair dye, orange pop or permanent marker then Liquid Magics citrus cleaner may not remove them. In some cases, several applications of a 10:1 dilution, plus elbow grease will break down and remove these types of stains