Formulation Design of Pasty Facial Washes Consisting of Low-Concentration Fatty Acids and Their Effectiveness

  • Tanaka Ippei
    Research and Development Department, Iwase Cosfa Co., Ltd.
  • Hayashi Emiko
    Research and Development Department, Iwase Cosfa Co., Ltd.
  • Qi Cynthia
    Department of Personal & Home Care, Lubrizol Specialty Chemicals Manufacturing (Shanghai) Co., Ltd.
  • Horikoshi Toshio
    Department of Personal & Home Care, Lubrizol Japan Ltd.

Bibliographic Information

Other Title
  • 低濃度の脂肪酸からなるペースト状洗顔料の処方設計とその有用性
  • テイノウド ノ シボウサン カラ ナル ペーストジョウ センガンリョウ ノ ショホウ セッケイ ト ソノ ユウヨウセイ

Search this article

Description

<p>Pasty facial washes are formulated with higher amounts of fatty acid salts and anionic surfactants than those of other washing products, and are associated with higher risks of skin irritation and rough skin. In the present study, we investigated the benefits of facial washes with lower fatty acid contents and the formulation of pasty facial washes with lower fatty acid contents. The results obtained demonstrated that washing with 18% potassium myristate prevented significantly more reduction in moisture content than did 30% potassium myristate. In order to formulate pasty facial washes with an 18% fatty acid content, appropriate thickening polymers were screened. We found that a particular acrylates/C10-30 alkyl acrylate crosspolymer with higher thickening efficiency and salt tolerance thickened the system most efficiently among the polymers studied. A pasty facial wash with an 18% fatty acid content thickened by this polymer significantly prevented reductions in the moisture content of the stratum corneum more than that with a 30% fatty acid content. For confirming the usability of the facial wash, a panel test was performed, and the result showed that the facial wash provided a satisfactory usability to the panelists concerning the pasty facial wash’s basic characteristics such as the volume and the elasticity of foam. These results demonstrate the potential of pasty facial washes with lower fatty acid contents thickened by this polymer as a new generation of soap-based facial washes providing several benefits such as mildness to the skin and cost effectiveness.</p>

Journal

References(4)*help

See more

Details 詳細情報について

Report a problem

Back to top