Slowing Down Hair Growth?

I have spent approximately 400 bucks on 3 laser hair removal sessions, and 5 months later, it has ALL regrown back, and then some. It has pissed me off to no end. I once heard about a bottle of cream, which you apply after shaving, and it slows down hair re-growth. Can anyone point me towards this item(s)?

As far as I understand you have to have laser removal done several times at different stages of the growth cycle. Eventually it will work. $400 isn’t that much. I know someone who spent that much just to get her armpits finished…