Abstract: A hair cosmetic composition containing or being prepared by blending a component (A), a component (B), and a component (C) below: component (A): a cationic surfactant, component (B): an amphoteric surfactant, and component (C): one or more kinds selected from the group consisting of a nonionic surfactant (C1), a modified silicone having a cationic group (C2), and a sugar alcohol having 4 or more carbon atoms (C3), having a mass ratio [(B)/(A)] of 0.4 or more and 5 or less, having a content of a higher alcohol of 0.1% by mass or less, and being used by filling up a non-gas type foam discharge container, and hair cosmetics using the hair cosmetic composition are provided.

Abstract: A hair cosmetic containing (A) a specified quaternary ammonium salt, (B) a dimethylpolysiloxane having a weight average molecular weight of 300 or more and 3,000 or less, and water, the hair cosmetic being used by applying on the hair and then rinsing away, wherein the content of the component (B) is 0.5 mass % or more and 60 mass % or less, and a receding contact angle (?R) of water droplet as measured by the expansion-contraction method with respect to the surface of a polyethylene plate which is applied with the hair cosmetic and then subjected to water washing is 82° or more and 110° or less. A treatment method of hair including (I) applying the hair cosmetic on the hair and spreading it over the entire hair, and (II) rinsing away the hair cosmetic with water from the entire hair.

Abstract: The present invention relates to a surfactant composition capable of making a dimethylsiloxane highly remain the solid surface, which is a surfactant composition containing an anionic surfactant (A), a cationic surfactant (B), and a dimethylpolysiloxane (C), wherein the following molar ratio RA is 0.10 to 0.90; and the following molar ratio Rb is 0.4 or more: RA: a molar ratio {(A)/[(A)+(B)]} of the amount of the anionic surfactant (A) to the total amount of the anionic surfactant (A) and the cationic surfactant (B) Rb: a molar ratio {[(a1)+(b1)]/[(A)+(B)]} of the total amount of a branched-type anionic surfactant (a1) and a branched-type cationic surfactant (b1) to the total amount of the anionic surfactant (A) and the cationic surfactant (B).

Abstract: A hair cosmetic containing (A) a specified quaternary ammonium salt, (B) a dimethylpolysiloxane having a weight average molecular weight of 300 or more and 3,000 or less, and water, the hair cosmetic being used by applying on the hair and then rinsing away, wherein the content of the component (B) is 0.5 mass % or more and 60 mass % or less, and a receding contact angle (?R) of water droplet as measured by the expansion-contraction method with respect to the surface of a polyethylene plate which is applied with the hair cosmetic and then subjected to water washing is 82° or more and 110° or less. A treatment method of hair including (I) applying the hair cosmetic on the hair and spreading it over the entire hair, and (II) rinsing away the hair cosmetic with water from the entire hair.

Abstract: A hair cosmetic containing (A) a specified quaternary ammonium salt, (B) a dimethylpolysiloxane having a weight average molecular weight of 100 or more and 3,000 or less, and water, the hair cosmetic being used by applying on the hair and then rinsing away, wherein the content of the component (B) is 1 mass % or more and 50 mass % or less, and a receding contact angle (?R) of water droplet as measured by the expansion-contraction method with respect to the surface of a polyethylene plate which is applied with the hair cosmetic and then subjected to water washing is 82° or more and 110° or less. A treatment method of hair including (I) applying the hair cosmetic on the hair and spreading it over the entire hair, and (II) rinsing away the hair cosmetic with water from the entire hair.