皮膚表面特性によるスキンケア製品の塗り心地の変化

概要

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To examine application feelings of skin care creams onto damaged skin, we accomplished sensory evaluation of application feelings of skin care creams before and after treatment with SDS (sodium dodecyl sulfate) aqueous solution which is one of surfactant. Friction coefficient, water content of stratum corneum, sebum content and TEWL (transepidermal water loss) of normal skin and SDS damaged skin were also measured. The results showed that sensory values of application feelings of skin care creams for damaged skin were lower than those for normal skin. It means that application feeling was worsen by SDS treatment. It results from the change of the fluidity of skin care creams on the skin surface due to decrease of hydrophobicity of skin surface caused by SDS treatment removing sebum and stratum corneum lipid from the skin surface.
2006-09-05