Ajinomoto Co., Ltd.

Shuvendu Biswas

Naoya Yamato

Shiori Oono

An unground N-long chain acyl lysine crystal production method that includes: preparing a solution having at least one type of N-long chain acyl lysine dissolved in an acidic or basic solvent including water and/or one type selected from water-soluble organic solvents; dipping the solution into an acidic solution having a pH of at least 0.2 and less than 2.0, at a temperature of no more than 20° C.; and crystallizing N-long chain acyl lysine crystals.

N-long chain acyl lysine crystal production method and composition containing said crystals

Oil compositions containing two or more mixtures selected from the group consisting of a lauroyl glutamic acid diester mixture having a melting point higher than 33&#xb0; C., a lauroyl glutamic acid diester mixture having a melting point of 20 to 32&#xb0; C., and a lauroyl glutamic acid diester mixture having a melting point of &#x2212;20&#xb0; C. or lower can simultaneously achieve the texture properties (melting smooth feel, uniform spread over the lip surface, and transparent gloss), stability (such as improvement in breaking strength and improvement in temporal stability of the breaking strength), and the elasticity necessary for improving makeup duration of a lipstick.

Oil composition and cosmetic containing the same

Provided are gelling agent compositions capable of preparing gel compositions with good stability, which include a composition containing (A) at least one kind of N-acyl acidic amino acid dialkylamide represented by the formula (I): wherein each symbol is as described in the DESCRIPTION) and (B) fatty acid having 3-22 carbon atoms or fatty acid having 3-22 carbon atoms and higher alcohol having 8-22 carbon atoms or (E) N-acylamino acid, a composition containing (A) at least one kind of N-acyl acidic amino acid dialkylamide represented by the formula (I) and (B') a solvent having a boiling point of not more than 120&#xb0; C. and not more than 2 wt % of water, and a composition containing a particular N-acyl acidic amino acid dialkylamide at a particular ratio.

Growing community of inventors

Kawasaki, Japan

Shuvendu Biswas