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In this study, the formation potential and the stability of nano-emulsions were evaluated according to the structure of various cosmetic oils in Tween 80/Span 80 system using PIC method at 80 oC LP 70, Isopar H and Pripure 3759 of hydrocarbons were both form a stable nano-emulsion, particle size distribution of about 40 nm. A linear structure of silicone oil formed an unstable emulsion, but cyclic or short chain oil formed was a stable nano-emulsion. In ester oils, the particle size of emulsions increases with increasing molecular weight of oils and a stable nano-emulsion could not be obtained in the molecular weight of about 450. The particle size of the nano-emulsion against required HLB value for calculating in consideration of the lipophilic and hydrophilic oil was smaller in the HLB of 8-10.

Application of Nanoemulsions upon Type of Cosmetic Oils for Convergence Type of Cosmetics