Hair treatment compositions and methods

Abstract

A sulphate-free cleansing composition for hair and scalp comprising: i) of an alpha olefin sulfonate anionic surfactant of general formula (I): R1—CH═CH—CH2—SO3-M+ (I) in which R1 is selected from linear or branched alkyl groups having from 11 to 13 carbon atoms and mixtures thereof; and M is a solubilizing cation; (ii) an amphoteric or zwitterionic surfactant, selected from an alkyl betaine of general formula (II) R2—N+(CH3)2—CH2—COO-M+ (II) wherein R2═C12 (Lauryl), Cocamidopropyl or Coco derived; an alkyl hydroxy sultaine of general formula (III), R3—N+(CH3)2—CH2—CH(OH)—CH2—SO3-M+ (III) wherein R3=Cl2 (Lauryl) or Coco derived; an alkyl aminopropyl hydroxy sultaine of general formula (IV), R4—CO—NH—(CH2)3—N+(CH3)2—CH2—CH(OH)—CH2—SO3-M+ (IV) wherein R4=C12 (Lauryl) or Coco derived; an alkyl amphoacetate of general formula (V), R5—CO—NH—(CH2)2—N(CH2—CH2—OH) (CH2—COO-M+) (V) wherein R5=C12 (Lauryl) or Coco derived; and mixtures thereof and; iii) a piroctone compound; wherein the weight ratio of alpha olefin sulfonate anionic surfactant (i) to amphoteric or zwitterionic surfactant (ii) ranges from 1:1 to 6:1.

Dependencies are inferred from the claim text.