Stain-X Grout Cleaner uses a premium water‑based formula that lifts stubborn dirt from grout without harsh acids. It safely cleans ceramic, porcelain, travertine, and natural stone surfaces, leaving no residue behind. The cleaner works by spraying directly onto grout, agitating with a brush, and rinsing clean with water. Its biodegradable blend is odor‑free, making it ideal for both home and commercial use. Enjoy brighter, refreshed grout lines with minimal effort.