Ajinomoto Co., Ltd.

Takanori Sugimoto

Tatsuya Hattori

Kenji Hanabusa

Masahiro Ino

Naoaki Ikeda

Nana Haraya

Masahiro Suzuki

Takuya Okada

Masatoshi Saito

Souichirou Ootake

Keitaro Saito

Provided is a cosmetic composition superior in antiseptic property and having high moisturizing property. A cosmetic composition containing (A) particular acylproline or a salt thereof, and (B) particular hydroxamic acid derivative, particular acetophenone derivative or diol compound.

Cosmetic composition

Provided is a compound capable of gelling various aqueous compositions containing salt, acid and the like. An amphoteric ion-type basic amino acid derivative represented by the formula (1A): wherein each substituent is as defined in DESCRIPTION, or a salt thereof.

Basic amino acid derivative that demonstrates a gelling ability in a water system

An acyl dipeptide derivative represented by the formula (1): wherein an acyl group represented by R&#x2014;CO&#x2014; is a saturated or unsaturated, straight or branched chain acyl group having 2-24 carbon atoms, Rand Rare each independently a hydrogen atom, an OH group or an ORgroup, Ris a saturated or unsaturated, straight or branched chain hydrocarbon group having 1-6 carbon atoms, and Ris a hydrogen atom, or a saturated or unsaturated, straight or branched chain hydrocarbon group having 1-6 carbon atoms, or a salt thereof has a superior antimicrobial effect, and a composition containing the compound is superior in the sensory feel.

Acyl dipeptide derivative

Provided is a moisturizer having hygroscopicity and water retention ability, and also provided is a composition superior in antiseptic property and feeling on application, in addition to moisturizing property, and free of coloration and odorization. A moisturizer containing acylproline represented by the formula (1) wherein an acyl group represented by R&#x2014;CO&#x2014; is an acyl group derived from a saturated or unsaturated fatty acid having 3-23 carbon atoms, or a salt thereof, and a composition containing (A) acylproline represented by the above formula (1) or a salt thereof and (B) bisphosphonate.

Moisturizer and cosmetic agent containing same

The problem of the present invention is provision of a cleansing composition providing good amount and good quality of lather. Using a particular alkenoic acid or a salt thereof, the above-mentioned problem can be solved. In addition, the cleansing composition provided by the present invention is stable in various formulations and also useful for rough skin and damaged hair.

Cleaning agent composition

Combining a particular alkenoic acid or salt thereof with a sugar type surfactant and/or sulfate type surfactant affords a liquid cleansing composition which provides a good amount of lather and a superior moist feeling after washing.

Liquid cleansing composition

Provided is a composition that masks the odor characteristic of anisic acid or phenylalkanol, is superior in appearance and texture on application, and provides moist feeling to the skin after application. Specifically, a composition containing (A) acyl proline represented by the formula (I) or a salt thereof, and (B) one or more kinds selected from anisic acid and phenylalkanol is provided.

Provided is a compound capable of gelling various aqueous compositions containing salt, acid and the like. A basic amino acid derivative represented by the formula (1): wherein each substituent is as defined in DESCRIPTION, or a salt thereof.

Basic amino acid derivative

Provided is a novel oily material that spreads smoothly upon application and is free from stickiness, and also gives ungreasy and moisturized feeling after application, but does not give friction feeling peculiar to silicone. The invention was completed upon finding that a specific acyl acidic amino acid monosilicone monosterol ester can solve the foregoing problems.

Acyl acidic amino acid ester

Gelling agents which contain a specific N-acylamino acid monoamide monoalkyl ester have a melting temperature of about 100&#xb0; C., are capable of solidifying a wide variety of oily base materials including silicones, and do not cause 'sweating' while retaining a practical level of gel strength. When applied to skin, the resulting gels have a good feeling, good spreadability, and good fittability to skin.

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Kawasaki, Japan

Takanori Sugimoto