It also can be used on a variety of surfaces like granite, marble, mosaic, ceramic & etc. The cleaning is safe for both surface and skin with PH neutral formula Ecofrienldy No harsh Chemicals used (No Acid I No Ammonia I No Bleach) to make up the cleaning. We used earth friendly human safe ingredients. HARD STAINS SPRAY: Ecofriendly, No harsh Chemicals used to make up the cleaning. Ecologically safe as they are made from safer bio-degradable formula. Mild Fragrance PH balanced: The cleaning is safe for both surface and skin with PH balanced formula Direction to use: Spray the liquid directly on the stained surface. Wait for 30 seconds and wipe clean with a dry cloth. For heavy duty stains, spray and wait for 60 seconds. Advanced P3 Formula penetrates the surface & cuts through the deep roots of stains and wipes it away easily without leaving any residue of either dirt or liquid. Ensures the surface clean & shine