Hello everyone. New to this forum. I have big questions. I'm 21 years old and planning to take HGH(Jintropin), haven't taken any steroids or anything except protein powder(lol). My questions are what dosage should I start from and for how long should I run HGH for best results? Planning to grow taller(if plates are still not closed), get lean and build muscles, heal my ankles and knees(cracking and shit from accidents). Thanks in advance.