Recently I was shocked by the fact that they test some cosmetic products by experimenting on animals. I used to make some cosmetic products myself, but I quit because it was a lot of work. Now do I start making them again to help save animals ?

Recently, I was shocked by the fact that, before some cosmetic products come out, they **experimented** on animals. I used to make cosmetic products by myself, but I quit doing that because it was a lot of work. Now do I start making **them** again to save **the** animals? - Pretty good as written! Just note the corrections between the ** **. Also note that some punctuation has been added. **The** in the last sentence is optional. It sounds a little unnatural to me without the article there, but it makes sense how you have that part.

Recently, I was shocked by the fact that before some cosmetic products come out, they experiment them on animals. I used to make my own cosmetics before, but I quit doing that because it was a lot of work. Should I start to make them myself again to save animals?