For starters, castile soaps are gentle yet highly effective cleansers on skin. Even though it can tackle the most stubborn grime, it’s also very hydrating due to saponified oils, meaning your skin won’t feel overly stripped and squeaky. “However, it’s always a good idea to review the ingredient lists for any possible allergens if you’re using it on the skin, and always discuss any specific questions with a dermatologist or physician before use,” . Also, keep in mind that castile soap itself is not antibacterial and does not kill microbes, although it will wash away dirt and germs.

Another plus for vegans: One of castile soap’s distinguishing traits is that it’s made purely of vegetable fat, rather than animal fat. Plus, you are using a highly concentrated formula of soap, so you can use less and reduce waste. “The natural saponification process that castile soap follows has been used for thousands of years to make soap that helps to keep us safe from germs and viruses,” explains Onysko. “And the process, as well as the end result, is kinder to our bodies and the environment.”