Is creatine safe

Yes, creatine is not an anabolic steroid and does not require cycling to avoid side effects. It is generally considered safe when taken within the recommended doses (under 10-15 grams daily with a carbohydrate source for better absorption), and assuming the person stays well hydrated while using it (at least 6-8 glasses of fluid daily). There are no age limitations as to when you can start taking it nor for how long, though I would recommend limiting its use to under 40 years old when renal function may begin to decrease.