HARRIS 12 Concentrated Food Grade Hydrogen Peroxide, for Kitchen, Bath, Laundry, Home and Garden, 128oz

Best value 12% HP available, and food grade to boot! Safe to use for cleaning humidifiers as it doesn’t contain stabilizers that would be harmful to breathe. Works amazingly well to remediate mold in grout if you poke a tiny hole in the foil seal, and tip over to pour a focused stream on your target. It will last you a long long time in this application.

A really good whitening chemical; it worked wonders for me—1,000% effective. I’m truly very happy with the final results. Highly recommended.

This IS the new goto product for us. Whites are cleaner, no bleach smell and is a powerful disinfectant also. Can also use on cinder block walls to remove algae and black mode without worrying about bleaching out things. Spray, bubbles a bit, light brush.. rinse off. Yes, it is more money and I'm not anti bleach, but this is a better alternative for us and enviro friendly around pets. Will be getting another gallon soon.

Was able to dilute this by a ratio of 4 and it works great. As good or better than common store bought peroxide.

​If you are dealing with stubborn black mold, forget the standard 3% grocery store hydrogen peroxide—this 12% concentration from Harris is what you actually need. I used it to tackle a tough mold issue, and it absolutely obliterated it on contact. It bubbles up vigorously, lifting the mold right out of the surface. ​Because it’s 4x stronger than standard peroxide, it works fast and cuts down on scrubbing time significantly. Just make sure you wear gloves and work in a well-ventilated area because this stuff is professional-strength and means business. It’s an incredibly effective, chemical-bleach alternative that actually gets the job done.