i don't think malco is the cure all either 3 years ago i bought some and used it once a year to clean the seats before i conditioned and uv protected them but never had any stains on the boat. last summer after a long day on the lake i came home and was putting things away and and notice 3 different spots on the seats were red stains ...couldn't have been drinks cause beer was all that was drank other then water so maybe someones brand new shorts or towel bled onto the butt part of the seats. use malco and it cut the color to less noticable color more pinkish now but won't remove it completely. tried numerous times with no luck.