If the lip scrub formulation is anhydrous and therefore not water containing, it will not need a preservative. Antioxidants like vitamin E are however are added to help extend the shelf life of the oil, wax and butter formulation. Antioxidants are not preservatives. If the lip scrub is presented in an open-neck jar and the user is likely to dip wet fingers into the product or the scrub may come into contact with moisture, it is wise to include a preservative; there are a few lipophilic (oil-compatible) preservatives on the market. Alternatively, package the lip scrub in a tube or pump dispenser adjusting the viscosity to ensure it can be dispensed easily and that the scrub particles remain evenly dispersed.