First off, it's a true Castile soap! Castile soap (pron. ka-ˈstēl) is a highly effective and versatile cleaner made from vegetable oils. It originated in the Castile region of Spain, where olive oil was combined with sodium carbonate to create a hard white soap that was sold throughout Europe as early as the 16th century. Since then, production has evolved to include other plant-based oils, such as sunflower & coconut oils.
Why it's the best: Since castile soap is made from safe, simple plant oils, it is considered safe for even the most sensitive skin types. It can help oily, acne-prone skin. The oils found in castile soap penetrate pores and hair with their antibacterial agents, helping clean your skin and beard without drying it out.