This product comes in a spray format, blue bottle, yellow spray trigger. My two boys would play in the grass and come home with grass stains ground into their pants. You spray this product on the stain, and anywhere the stain is it foams up a bit and turns white. You do not scrub. Throw the treated clothes in the wash and out in comes, no grass stains. The other think it works amazingly on is blood. So during hunting season, stained outerwear just needs a spray and once again, it foams a bit and you just throw it in the wash. I don't know about other types of stains, but for grass and blood, this actually works 100%. I have been buying it faithfully for years.
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