Right. As Nate has said, anything longer or higher dose than what we recommend will involve more complex PCTs. If you were to up-dose 3-AD and take it for an extended cycle, then you may run into an increased risk of certain side effects, such as shutdown, that would not happen if you followed our recommended parameters. We say that 3-AD is one of, if not THE safest PH on the market today. But with everything else, there is that caveat for abuse. Do anything to excess and you run certain risks that won't be worth it.
Additionally, there is also the point where a supplement of any sort will not have an affect on you. As you introduce something new to your body, your body reacts favorably to the change - in this case, by reaping the benefits of strength and size. This is what our brain desires, but is contrary to what the body wants. Our bodies are naturally resistant to outside stimuli to keep us safe, so introducing supplements of most any sort puts that delicate balance off. As the body tries to regain the balance, products become less and less effective. Ask anyone who has been on stims for a long time if they are still sensitive like they were the first time around. (Me being that person, I'll say no very loudly!) The same is true with 3-AD. More is not better, and longer is not better. You will reach the point where the benefits just aren't coming any more. Our recommendations stop you before that occurs, and before there is that increased risk to your system.