I was taking Animal Stak up untill about 2 weeks ago. don't worry I'm just in the off cycle right now. I plan on starting another cycle in about 2 more weeks. Anyways It will give you incredible gains. I didn't have any random nose bleeds though, but every suppliment will react differently on different people. The only side effect I had was I broke out alittle on my back from the growth hormone boosters in it, but for the gains I could deal with it. I would suggest trying it. I got way more solid than I have ever been, and gained strength in everything.