Melrose Organic Castile Soap Lemon Myrtle Refill 500mL is pure and simple. It can be used as an everyday body wash, as a gentle cleanser for hands or even for cleaning laundry. Castile Soap is especially great for dry, itchy, irritated or sensitive skin; it also works well on oily skin and acne by helping balance oil production and preventing the clogging of pores.