When adding shea butter to melt and pour soap base, the recommended amount is usually between 1 to 2 tablespoons of shea butter per pound of soap base.
The exact amount of shea butter you add can vary depending on your personal preference and the specific melt and pour soap base you are using. It's always a good idea to start with a smaller amount and gradually increase the amount until you find the right balance that works for you.
Keep in mind that adding too much shea butter can make your soap base softer and more prone to melting, so it's best to use it in moderation. You can also experiment with other additives such as coconut oil, cocoa butter, or jojoba oil to create a soap that suits your skin's needs.