The consistency of silicone oils ie. critical in separated formulas. Dimothicone and/or cydomethieone (pentamer) fluids must have viscosities lower than 300 cps to be useful for this purpose. The performance can be adjusted by adding water- soluble dimethicone copolyols into silicone oils. The amount of salt is about 65% to 75%and the amount of silicone oils is about 35 % to 25 %
suspended formulas are made by using silicone elastomer to thicken low molecular weight silicone oils. The perfotmanee also can be adjusted with water-soluble dimethicone copolyols. The ratio of salt/sugar to silicone oils is about the same as the separated type. Another way to thicken silicone oils is by incorporating quaternium- 18 bentonites or tridydroxysterin.
Scrubs based on silicone oils give the best skin after-feel,but provide less skin protection and cost more than other types. Still, they are applicable in high-end products.
Future of Scrubs Formulary
Scrub products have only recently gained momentum. It Seems that this section of the market will continue to increase in popularity with increasing consumes knowledge of skin "de-stress" and "detoxification"within the mass market. From a formulation viewpoint, the nonaqueousbased products will probably show increased preference since they are easy to use and possess More functions and benefits. Thus skin after-feel and skin protection will encourage more consumers to buy these products.