I know that clen works well for approximately two weeks or so since it is a specific beta-2 agonist and therefore its effects are short lived, but im wondering what amount of time between cycles would be required to be effective the next time. this question is for a friend of mine as I would personally use MD6 instead. Also what is clens half life?
While most people I know tell me they never quite get that same “effect” that they experienced during first time use, 5-8 weeks is usually sufficient to allow some effectiveness. The half-life is 25-39 hours.