Apply Caulk Around Toilet Base

What happens here

As a final step for a clean finish and to prevent water from collecting under the toilet base (which could cause mildew), apply a bead of caulk around the perimeter where the toilet meets the floor. Use a caulk gun to apply a continuous, even bead and then smooth it with a wet finger or a caulk tool. This caulk is primarily for aesthetics and to prevent surface water from seeping underneath, not for sealing the internal flange leak, which is handled by the wax ring.

Goal: Seal the perimeter of the toilet base to the floor for a finished look and to prevent surface water intrusion.