Creatine’s performance effect depends on saturating muscle stores. With consistent daily use, some people notice changes within 1–2 weeks, while for many the effect becomes clearer over several weeks. Outcomes are amplified by structured resistance training, adequate sleep, sufficient calories/protein, consistent dosing, and good hydration. Early weight gain can happen quickly and is usually water/store-related. If you do not have a performance goal, creatine is not mandatory. Those with kidney risk factors should use a clinically guided plan.