Creatine does not help you lose weight. It isn’t a fat-burning supplement, and it doesn’t directly cause weight loss.
If you are thinking about taking creatine, a registered dietitian can help determine whether it is right for you and explain how to use it safely.
To lose weight in a healthy way, the most effective approach is to create a calorie deficit (eating fewer calories than you burn) while staying physically active to boost calorie expenditure.