We run a house cleaning business and are now selling professional-grade cleaning solutions to the general public. This is an acidic cleaner that excels in bathrooms and other water-related areas. ※ Actually, I use it to clean my own bathroom (lol) ・Professional use only, not generally available to the public. 　We've improved it for ease of use by adding a penetrating surfactant to the acidic cleaner. Comes in a set of 3 bottles of 33ml concentrate each. Dilution ratio: concentrate to 5x dilution ※※※※※Tips from cleaning professionals※※※※ The bathroom cleaners you usually use are mostly weakly alkaline or neutral detergents. Typical weakly alkaline detergents: Lion: Ofuro no Look Lion: Look Plus Bathtub Cleansing Kao: Bath Magiclin Air Jet Linrei: Ultra Hard Cleaner for Baths Typical neutral detergents: Kao: Bath Magiclin Utamaro Cleaner For everyday cleaning, use your usual detergents to clean sebum stains and pink slime (Rhodotorula). (^O^) Black mold stains cannot be removed without chlorine-based detergents. Typical chlorine-based detergents: Kabi Killer Please continue to use these as well. (^O^) Characteristics of acidic cleaners In fact, acidic cleaners are not used in everyday cleaning, but in reality, you can't remove 【water stains】 without them! 【What are water stains?】 = The white, hazy stains in the bathroom, and the scale on mirrors. After your usual bathroom cleaning (with weakly alkaline detergents and Kabi Killer), use the acidic cleaner as a finishing touch to remove water stains! Recommended usage: First, finish your usual bathroom cleaning and rinse well with water. Pour 16ml (half the container) onto a moistened bathroom cleaning sponge. Scrub the areas of concern and rinse everything with water or warm water within 5 minutes. Clean with the acidic cleaner about once a month to reduce water stains. (^O^) 【Condition】 New 【Contents】 3 bottles of 33ml concentrate (99ml total), enough for 6 months 【Acidity】 Acidic 【Details】 Acidic cleaner / Made in Japan (not Sanpole) ※Important※ The container containing the concentrate is made of a non-dissolving material, but it is recommended to store it in a bucket or similar container. We are not responsible for any damage to floors, etc., in case of leakage, so please store it at your own risk.