Col Conk shaving soap typically lasts for about one year.
4Oz shaving soap typically lasts for about one year. Some people prefer soaps as the scent is less potent and it lasts more than a tub of shaving cream.
How Long Does 4Oz Shaving Soap Last?
It is influenced by a number of factors, but assuming your shaving soap is a medium-hardener it will likely last at least 100 shaves. 
Does Shaving Soap Last Longer Than Cream?
It will lather much easier if you plashing a little water on the puck and letting it sit for a few minutes. Some people prefer soaps as the scent is less potent and it lasts more than a tub of shaving cream. 
Do You Store Shave Soap In The Mug?
The method that is most convenient for you is the one you should choose. To get the most out of your shaving soap, we recommend building the lather in a bowl or mug before applying, as it yields the maximum amount of lather per shave, which is best for a large area of shaving needs. 
Does Shaving Soap Expire?
As long as they’re hard soaps they’ll last, as brian said, creams and many soft soaps/croaps will go bad after a couple of years, especially if they are preservative free like cella. I shave with vintage william’s and they have no scent but produce a wonderful lather. 
What Is Shave Lather For?
The hair is softened in preparation for shaving and the lather is used to coat the face. 
Frank Harmenstein is the lead editor of the grooming website Cut Throat Straight Razor, and has over 15 years of experience in the industry. He’s personally tested and reviewed over 200 different straight razors, and has written countless articles on the subject.