Most of us use cleaning products fairly frequently, at work and at home. Corrosives are defined as those chemicals that cause damage to organic material, especially human flesh. Acids and bases are all corrosive, and most cleaners are composed of acids and bases. Most likely, the more effective a product is at eating away the dirt, the more effective it will be at eating away the skin on your hands. It will also do more damage if accidentally splashed in your eyes.
Cleaning products can also be extremely reactive when mixed.
Even emptying a mop bucket with an ammonia containing product into the sink, followed by a sponge full of bleach, can produce enough chlorine gas to be dangerous. Take whatever steps are necessary to avoid mixing cleaning products. Always run clean water through a drain after dumping any sort of cleaning product down it. Wear rubber gloves, especially when using industrial strength cleaners. If there's any chance of getting a splash in the eye, wear protective goggles.