There are some limitation when employing natural oils in salt and sugar scrubs. Changing the color of the oil phase is difficult because most natural oils have a yellow or green- yellow hue. In addition, natural oils do not spread easily across surfaces. Therefore the spreadability of natural oils comes into play and is normally represented in terms of viscosity. Light natural oils low viscosity) are preferred to heavy natural oils (high viscosity) because they are easier to spread across the skin surface and do not leave a heavy feel. The preferred viscosity range of oil or oil blends is 50-200 cps. It is the unfortunate case, however, that natural oils Gexcept sunflower oil and safflower oi) show moderate comedogenicity.15 Mineral oil, iso or synthetic esters (oils) can also be used in scrub formulations. They are usually colorless and odorless and, as such, are readily colored and fragranced to meet marketing requirements. They are also easy to spread and are perceived to be less "heavy" on skin. Viscosities below 300 cps are preferred in better performing products. Formula ratios of oil phase to salt/sugar phase for this base type are the same as with natural oil formulations. It is worth mentioning that mineral oils are colorless, m odorless liquids. They are excellent cosmetic clear and emollients because they are inert and do not penetrate into