Yes. Supplementing with probiotics will re-introduce bacteria into the gut. However, this effort is futile without prebiotics, which feed the bacteria and ensure that they flourish.
If you are new to probiotics, try supplementing every day to establish a healthy colony. But once it’s up and running, supplementing with prebiotics is critical to keeping bacteria healthy over time. Maintain health by supplementing with both prebiotics and probiotics regularly in order to keep the existing bacteria population intact.