Please help me to fix this short opinion

Please help me to correct this writing, especially the grammars. 

here we go:

----

I don't agree with the ban on animal testing because I think human skin is more sensitive, if he testing is doing to animal first I think it's not dangerous for human. Because we don't know the impact of the new products.

But, I think the ban on animal testing can make animals extinct if the results of the product makes diasbility or death.

 

 

Please correct this writing Please kindly correct this writing. I don't agree with the ban on animal testing because I think human skin is more sensitive, if he testing is doing to animal first I think it's not dangerous for human. Because we don't know the impact of the new products. But, I think the ban on animal testing can make animals extinct if the results of the product makes diasbility or death.

is this grammaticaly correct? Are this writing gramatically correct: I absolutely agree with the banning of animal testing because millions of animals are killed in the process of chemical testing. I think companies should convert to other options that don't involve testing chemicals on animals. Now the society is more aware of this harsh matter. That's why consumers now prefer buying items that are not animal tested. The death of millions of animals is not just inhumane but can also cause a gap or a change in the ecosystem/food chain.

Please correct my writing Please correct this writing: This is really a difficult choice to make. Scientists have been experiminting with a lot of animals since the begining of scientific experiments, because is far more risky to use human as experimental objects. I personally think that the ban on animal testing should be done selectively. For example, animal testing should be prohibited on make up company, since it is not too risky to test on human skin. However, I think it is okay to use animal as object in experiments for finding cure for some diseases. That way we can reduce the number of animals harmed in experiments.