It acts as a , coating the blockage and the sides of the pipes, while simultaneously breaking down the bonds holding the clog together. This makes it easier for the water to flush the obstruction away.
Unblocking a toilet with washing-up liquid is a popular "life hack" that works by using the soap as a lubricant to help the blockage slide through the pipes. This method is most effective for minor clogs caused by organic waste or excessive toilet paper. How to Unblock a Toilet - Bathroom City unblock a toilet with washing up liquid
The science behind this hack is simple. Most toilet clogs are caused by a combination of water-soluble materials (waste and paper) and natural oils/grease. Washing up liquid is designed to cut through grease and break down food particles on dishes; it does the exact same thing for the debris in your toilet. It acts as a , coating the blockage