| abstract |
(57) [Problem] To provide an external preparation for skin which exerts effects based on various pathological phenomena of skin from the aspect of skin pH buffering ability. That is, it is intended to provide a skin external preparation capable of synergistically exhibiting the skin improving effect of a combined skin improving agent while preventing alkalinization in skin having a decreased skin pH buffering ability. SOLUTION: In addition to adding a conventional skin improving component to a skin external preparation, by making the pH of the skin external preparation weakly acidic, alkalinization of the skin having a reduced skin pH buffering ability is achieved. To prevent or treat various pathological phenomena of the skin more effectively, that is, components having a skin improving effect, specifically, amino acids, protease inhibitors, lipids, plants One or more components selected from the group consisting of extracts, hydroquinone derivatives, vitamins, glycyrrhizic acid, and glycyrrhetinic acid and its derivatives, which have a skin-improving action, are blended, and the pH range is 4 or more. It has been found that the above problems can be solved by providing a skin external preparation having a pH of 0.5 to 5.5. |