FOAMABLE SKIN EXTERNAL PREPARATION

• Main Authors: SHIKANO TAKAYUKI, AKIMOTO KEIKO, ISAKA SAEKO, MATSUDA TOMOKO, TAKAGAKI KINYA, NAGASAWA SAKI, YAMASHITA MIKA, OKUMURA HIDEHARU
• Format: Patent
• Language: English; Japanese
• Published: 04.01.2022
• Subjects: HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS ORMEDICINAL PREPARATIONS; SPECIFIC USE OF COSMETICS OR SIMILAR TOILETPREPARATIONS

To provide a foamable skin external preparation which has good use feeling and is effective for improving skin conditions.SOLUTION: There is provided a foamable skin external preparation having at least a solid acid substance and a solid carbon dioxide generating substance which generates carbon dioxide by reacting with the acid substance, which further contains at least one selected from a cellulose derivative and a starch derivative as a polysaccharide or a derivative thereof and at least one selected from a hydrophilic natural polymer which is alginic acid or a salt thereof, carrageenan, guar gum, locust bean gum, xanthan gum or tamarind gum (provided that alginic acid or a salt thereof is excluded when sodium carboxymethyl cellulose is contained as a cellulose derivative), in which the skin external preparation is mixed with a water-containing substance when used.SELECTED DRAWING: None 【課題】使用感がよく、また皮膚の状態改善に効果的な皮膚外用剤を提供すること。【解決手段】本発明の皮膚外用剤は、少なくとも、固体状の酸性物質と、該酸性物質と反応して炭酸ガスを発生する固体状の炭酸ガス発生物質とを有する発泡性皮膚外用剤であって、更に、多糖類又はその誘導体として、セルロース誘導体及びデンプン誘導体から選ばれる少なくとも一種と、アルギン酸もしくはその塩類、カラギーナン、グアーガム、ローカストビーンガム、キサンタンガム又はタマリンドガムである親水性天然高分子から選ばれる少なくとも一種（但し、セルロース誘導体として、カルボキシメチルセルロースナトリウムを含有する場合は、アルギン酸又はその塩類を除く）とを含有し、前記皮膚外用剤の使用時に含水物質と混合する。【選択図】なし