Controlled pH level is safe for most colors and fabrics, while effective on stains. Remains safe even when applying steam. Unlike some tannin spotters, StreeTAN's activity does not increase to damaging levels with heat. This simplifies your spotting routine by eliminating the need to rinse the stained area with cold water before flushing with steam. Effectively removes last traces of ink stains. Used alternately with StreePRO® protein spotter, can often eliminate ball point, indelible ink, and marking pen stains.