HOT-ROX.....Maximum Strength HOT-ROX.
Other than that, we don't know what you have already done (training, diet, etc), so we can't really give you advice on changes to make. I based the HOT-ROX response on your asking about Hydroxycut. Don't waste your money.
Eat Clean, Train Hard, and add some "smart" supplementation.
If you haven't tried it already, I had success with the "Velocity Diet". Use the search engine on this site to find the links to the articles on the V-Diet. The originals are all located in Chris Shugart's blogs, but there are a few threads from the Velocity Diet support groups that are helpful. From your low teen range of bf%, you should easily get in the single digits with the Velocity Diet.