While beef tallow might sound intimidating at first glance, it is an incredible ingredient with a long history in soap making and skincare. For one, tallow is rich in palmitic and stearic acids that help create a hard, long-lasting soap bar. These fatty acids also help condition the skin and work nicely alongside other moisturizing agents such as olive and coconut oil, creating a smooth, creamy lather. Tallow is also a more sustainable ingredient than palm oil because it is a beef by-product and can be sourced locally.