Faskh of nikaah

Q: In shariah law there is a system called Faskh e Nikah which allows a woman who is abused in a marital relationship and has legitimate reasons to end the marriage can do so through a judicial decree without consent of her husband. 

I would like to know is this system proven from Quran, Sunnah and Hadith? 

Secondly, what are the legitimate reasons that will allow a Muslim woman to exercise her right to annul the marriage through this system ?

Using cosmetics with haraam ingredients

Q: If cosmetic items and creams contain an ingredient that is derived from the meat of an animal that is haraam (either not slaughtered according to Shariah or from any haraam animal), is this cream impure and will it render the person using it impure (impure in the sense that one cannot read Salaah, Quraan etc.). 

When it comes to the cream, it is only applied to the skin.