How to Make Homemade Soap Without Using Lye – Can you really make soap without Lye?! Alright, I planned this blog post because one of the top search results that gets people to my blog is “how to make soap without lye.” I have no clue why. I haven’t posted an article about making soap without lye. So I wanted to address this. When it comes to DIY and soapmaking there are two popular types of soap that you can make. Lye is called sodium hydroxide. Read more on the blog!