Some formulas claim they will help people quit smoking in 7 days, while others say with patience and persistence, you'll be smoke-free within 10 weeks. Products that work really fast might come with heavier withdrawal symptoms, while gradual programs might make it a more pleasant experience overall. Based on the ingredients and suggested regimen, choose for yourself the product you think you'll be able to stick with and get the best results. Regardless of the route you choose, if you stick to your plan to stop smoking, you'll be successful if you are persistent.