Whiter then White

i dont know that agent for whitening clothes..here in our country, i often use Zonrox for bleaching and whitening clothes and it can also be use as stain remover on sink, toilet bowl and it really help me to clean my clothes. it can never use to colored ones coz it gives a white color on colored clothes and also after i wash the clothes, i better put a fabric conditioner so that the bad smell of the bleach will wash out..