Nothing! Absolutely nothing. All three of our Shea Oil variations have the same great benefits for the skin, but the Serenity & Lemongrass Oils have essential oils added to them for scent purposes. P.S: We use only pure essential oil to naturally fragrance our products.Serenity is our own unique blend and includes lavender, bergamot and ylang ylang. Lemongrass is a firm favourite and provides a refreshing scent.The Unscented (Ori-Nku) Shea Oil is for those that like to keep it simple, have sensitive skin or prefer to add their own fragrances.