Pre de Provence Guava Grapefruit with bits of guava and grapefruit peel making for a light exfoliation. This vegetable-based soap by Pre de Provence has a lather unlike any other. When used on a daily basis Shea Butter will soften dry skin and you will see a noticeable change in how your skin feels. Shea Butter is the best-known natural moisturizer you can use. It is nourishing soothing and healing.