The 4-In-1 Carpet Stain Cleaner is a pet and eco-friendly formula that safely cleans your carpet by leaving no chemical residue behind. Thanks to Tetraflex™, the product not only cleans, but prevents future re-soiling. The formula adds stain resistance and embrittles as it dries. The embrittled cleaner is easily vacuumed away leaving no chemical residue behind – your carpets are clean and residue free for a healthier home!