Mold & Mildew Stain Remover by RMR-86, 32 fl oz – Contractor Grade Instant Cleaner for Bathroom, Shower, Tile & Grout

I regrouted my shower 4 years ago and thought I would have to regrout again due to mold and mildew. a friend recommended this. sprayed in dry shower in morning, ran errands and came back. in less than 2 hours, mold and mildew are gone. rinse off and leave fan running. strong chlorine smell, used vinegar to dissipate smell for an hour. rinsed off again and shower is like brand new and has no strong smell.

Absolutely amazing! I tried everything I could think of to get black spots off the caulk in the old shower. Bleach, vinegar, and I even tried toilet bowl gel, none of them removed the mold stains. I bought this, and I couldn't believe how quickly it removed every spot! Now the smell is very strong! Be sure the room is well ventilated when using. I'm so very happy to have found this product.

This stuff worked for mold spots on bathroom ceiling. They are gone. Worked better for me than vinegar or bleach. The smell is AWFUL but small price to pay for the end result in my opinion. More pricey than other brands I found online but I am satisfied I chose this one because it actually got the job done. I sprayed, let it sit for a few and wiped away. Easy, peasy. Just be sure to wear a mask. It was harsh on the nose and eyes.

I have used everything I could find to get rid of the mold and mildew in my shower. I have scrubbed and bleached and used white vinegar and baking soda. You name it, I have tried it. I stumbled across this product. Folks, this did the job! I did not use it in great quantities, and was really careful about the fumes, they are strong! But it worked and I am so pleased!

I recommend this highly, literally sprayed, washed my hands turned around and the mold was gone, only bad thing was even with all the doors and windows open and fan, the smell made me sicker than a dog. Other than that, this is like Mr.clean on steroids

Insane how well this removed the stains. Definitely a few steps up from normal bathroom cleaners, but don't forget to use with the purple bottle, which is what kills spores in depth. Definitely getting more when my current runs out (new house = new stuff to clean)

Some ratings say just use bleach... yet this is definitely stronger. Wear a mask. It cleaned the siding on my home that had not been powerwashed since covid. I used two spray bottle sizes for about 200 sqft wall. I followed the directions and sprayed sections, waited 15 mins, and rinsed with my hose. It didn't take a lot of pressure and NO SCRUBBING. It saved me from dragging out my pressure washer. I reapplied on some areas I missed and it was nearly effortless. I used some laundry bleach at the end for touch ups and rinsing on some spots, yet it definitely didn't come off as easy as this RMR product. The price is very good, and now I'm back to buy more for the back side of the house. I'll be using my pressure washer for that area since it's much higher and larger. I love this stuff!

Best mold and mildew remover I've ever used. I've tried many products and home remedies, nothing worked! I thought I would have to re-grout my tile shower, but now it looks amazing! I agree with other reviewers, it didn't work instantly, I sprayed in dry shower and left overnight, I was so pleased the next morning and I almost jumped for joy!!!

I saw this on YouTube, and ordered it as a sceptic. I've always used X14 in the past, and wasn't sure about trying something new. I am happy to say it worked fantastic! I used it on my tile shower. I didn't have to do any scrubbing. I sprayed it on, let it sit awhile, rinsed it off. Anywhere remaining spots got sprayed again. Its the best my shower has looked in a long time. One of those products I wish I'd tried sooner.

it did nothing, except it did do damage to my caulking. It softened it and it started to come off. I have used bleach before and other mold and mildew removers and never have this problem. The bleaching in this is milder than others I have used. It must be another chemical made to adhere it. I bought it because it said 15 seconds.