Abstract: 1.

Abstract: Provided is a quick and accurate way of assessing harshness of a surfactant towards a protein, which can be easily carried out under non-laboratory conditions and which facilitates recommendations for making suitable products. Particularly, provided are methods of measuring the harshness of a surfactant, which includes (a) providing an aqueous solution of surfactant and taking a first colour measurement; (b) adding a solid protein-dye complex to the aqueous solution of surfactant; (c) taking a second colour measurement and measuring the change in colour between the first colour measurement and the second colour measurement; and (d) matching the change in colour with a reference scale. The solid protein-dye complex can be prepared by dissolving a non-denatured corn protein and a protein binding dye in aqueous alcohol, and removing the aqueous alcohol.

Abstract: A method of measuring the harshness of a surfactant, comprising the steps of: i) preparing a solid protein-dye complex comprising: a) a protein, which is a non-denatured corn protein and which is soluble in aqueous alcohol; and b) a protein binding dye, which is specific to the protein (a); by dissolving a) and b) in aqueous alcohol to form a solution of protein-dye complex; and removing the aqueous alcohol to form a solid protein-dye complex; and ii) providing an aqueous solution of surfactant and taking a first colour measurement, iii) adding the solid protein-dye complex to the aqueous solution of surfactant, taking a second colour measurement and measuring the change in colour between the first colour measurement and the second colour measurement; and iv) matching the change in colour with a reference scale; provides a quick and accurate way of assessing surfactant harshness towards protein, that can be easily carried out under non-laboratory conditions and enables suitable product recommendations to be m

Abstract: A sulphate free cleansing composition for hair and scalp comprising, in an aqueous continuous phase: a total amount of anionic surfactant, amphoteric surfactant and zwitterionic surfactant consisting of: (i) from 3 wt % to 13 wt %, by weight of the total composition at 100% activity, 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) from 1 to 6%, by weight of 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) or Coco derived; an alkyl hydroxy sultaine of general formula (III), R3—N+(CH3)2—CH2—CH(OH)—CH2—SO3?M+ (III) wherein R3=C12 (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 alky

Abstract: A sulphate free cleansing composition for hair, scalp or skin comprising, in an aqueous continuous phase: a total amount of anionic surfactant, amphoteric surfactant and zwitterionic surfactant consisting of: (i) from 3 wt % to 13 wt %, by weight of the total composition at 100% activity, 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) from 1 to 6%, by weight of 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) or Coco derived; an alkyl hydroxy sultaine of general formula (III), R3—N+(CH3)2—CH2—CH(0H)—CH2—S03-M+ (III) wherein R3=C12 (Lauryl) or Coco derived; an alkyl aminopropyl hydroxy sultaine of general formula (IV), R4—C0-NH—(CH2)3—N+(CH3)2—CH2—CH(0H)—CH2—S03-M+ (IV) wherein R4=C12 (Lauryl) or Coco derived; an