Hearing one's own recitation in Salaah

Q: Question regarding reciting inaudibly. In my case I was praying Dhuhr Fardh and quietly as to hear my own voice, in my last (4th rak'ah) - I was reciting "Ghayril Maghdoubi" at Maghdoobi, I could only clearly hear "Ma--doobi" the Gha wasn't proper so that I could hear, but I moved my tongue to recite it as normal. Obviously I didn't want to recite "Ma--doobi", so I think I inaudibly said the gha, does this matter or affect the validity of the namaz?

Wearing makeup

Q: I have a non muslim friend who was asking me that muslims are not allowed to wear make up then why do you wear it? I said to her that I only
wear foundation to hide my dark circles and it looks natural so I'm not attracting. Is it still not allowed?