As long as you are healthy, you are never too old! The older you get, the more health issues you may already have, so be aware going in. Prostate, cholesterol, and test production are 3 areas that are worth knowing about yourself before you start. If you have issues in these areas, gear can make it worse, so go in knowing where your health is, and keep an eye on it while you cycle. Issues can be controlled and prevented if you know whats up, going in. A lot of older guys use HRT when they aren't on gear, So for them, natural test levels are not an issue

There are some major benefits to having more muscle and being strong, going into older age, so if you use with care, you can possibly improve your quality of life