How to Make Soap Last Longer in the Shower - Soap Queen
Dec 14, 2016·In general, firmer bars of soap last longer in the shower. Using more hard oils helps create a firmer bar of soap. Hard oils refer to oils that are solid at room temperature such as palm oil, coconut oil, beeswax and palm kernel flakes. In general, soap with about 60% hard oils would be considered a firm bar of soap.