| Summary: | 碩士 === 嘉南藥理大學 === 化粧品應用與管理系 === 105 === Silicone oil in the main function of cosmetics to increase the sense of smooth, comfortable and moisturizing. The purpose of the use of powder is to make the skin coloring, cover the flaws, absorb sebum and increase the degree of refreshing.
Gel cosmetics in the general consumer awareness, for the very low oil content of the cosmetics category. In order to seek innovative development in cosmetic formulations, add silicone oil to gel cosmetics to increase the smooth touch. Because the gel cosmetics use a lot of polymers , that consumers easy to feel sticky.
Add powder in the gel cosmetics can reduce the sense of thick.
In this study, the relationship between the stability and rheological behavior of silicone oil for gel-type cosmetics was mainly discussed. (Carbopol 940, Carbopol 341 and Carbopol U20) were intermixed with five different concentrations of silicone oil incliding DC200 / 100, DC556, TSF404, DC9041 and RM2051 to form gel cosmetics.
The gel-type cosmetics was passed through aging test.
By observed the rheological behavior and stability to discover the good formula , and select the stability of the experimental formula to add 3%, 5% and 8% powder.
After add powder in the gel-type cosmetic,I observed the rheological behavior and stability to discover the good formula.
The results showed that: (1) If the gel-type cosmetics lack of energy. It will likely lead to poor stability. (2) The stability of the polymer is G3> G2> G9. (3) Silicone oil type E with the polymer G2 will be a more stable formula. (4) Silicone oil added to the gel-type cosmetics will influence the stability of the gel-type cosmetics. The stability of the percentage of silicone oil added to the gel-type cosmetics is 0.1% = 1%> 10%. (5) The stability of the percentage of powder added to the gel-type cosmetics is 3%> 5%> 8%. (6) The most stable formula of gel-type cosmetics containing the silicone oil is G2-E1. (7) The most stable formula of gel-type cosmetics containing the silicone oil and powder is G9-T0.1-P3. (8) The formula G9-D10-P8 is the most application formula of this study.
Although it has the question of stability, aging for seven days could solve it.
In this study, the researchers as a cosmetic for the gel-type cosmetics with silicone oil and powder research and development reference.
Keywords: polymer, silicone oil,powder, rheology, stability
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