Make your own homemade bars of soap with essential oil. Shea butter makes the soap especially moisturizing and emollient. Due to its natural proprieties, lavender is know for its calming and relaxing effect and for cleansing the skin gently. Melt the soap base either in a water bath or in the microwave. You will need 50 g soap base per finished square of soap. Place your bar of soap in a soap dish, allowing it to dry out between each use.