Sodium Hydroxide:
This is perhaps the most hazardous ingredients that you must be alert of. Also known as lye, sodium hydroxide is primarily found in heavy duty products such as oven cleaners & drain un-blockers.
Just imagine how acidic these products must be, if they can clean blocked drains within minutes, what it could possibly do to your eyes, skin and airways. So, just try to keep these products away from your home and prevent serious chemicals to anybody in your family.