abstract |
Disclosed is a compound that has an effect of improving the elasticity of hair and can exhibit the effect for a long period of time. Moreover, the compound which can comb hair without impairing a touch, and can exhibit the effect for a long period of time is provided. A compound having a lactone structure at both ends represented by the following general formula (1) is used. [Chemical 1] (In the formula, n represents 1 or 2. R represents a hydrocarbon chain containing a linear, branched or cyclic structure having 4 to 50 carbon atoms, and may contain an ether bond, an amide bond or an ester bond. , Bonded to any carbon atom other than the carbonyl group of the lactone structure.) [Selection figure] None |