Our high quality fragrance oils are a blend of aromas which could contain essential oils. They are formulated to be stable in soap, and skin safe.Not all essential or fragrance oils are skin safe, but the ones used for bath and body products are required to be skin safe. We've worked hard to find blends that go with our products, and also work with our formulas. Most notable is our Sweetgrass fragrance oil which is custom blended to smell like Sweetgrass, but does not contain Sweetgrass.