Initially when the soap is new, it is very effective in cleaning, however over a period of time, the soap reduces in weight and the soap bar becomes smaller. It is noticed that some soaps remain effective in cleaning while others are not so effective in cleaning the body as they decrease in size, as the soap ingredients are washed away in the lather.
The problem is particularly severe for hair soaps, which are used to clean the hair of dandruff and other grime, especially during winter.
So in this case, the soap pieces should be used for other applications like cleaning the hand after gardening, or other household chores, instead of using it to clean the body.
Some people combine the soap pieces to make a big soap
Please share how you use the soap pieces which are smaller in size, 3-4 cm in size