Any recommendation about Body Fat Burner?

When my husband got into the national guard, he started getting into the idea of working out. So as of yesterday, he went jogging, brisk walking, and running for about 200 miles. Then, today, he did push ups and sit ups. I thought I need to work out too and burn some belly fat before my skin will lost its elasticity. I was thinking of buying myself a fat burner so my belly fat will get lose right away and then at the same time, do exercise. Since I don't want to lose some fats on my buttocks, on my chest, on my thigh since they're already good enough for me, so I guess, mild exercise will work out for me.

The only problem I had is just my post pregnancy belly fat that takes a while to lose. Well, I have found a wide selection of body fat burner but I don't know which one to get.

If you have any recommendation, it is very much appreciated. I really wanted to get one and get fit and be sexy again. Just leave me a comment below. Thank you.