Conopco, Inc.

Annie Jaye Galpin

Robert George Riley

Pierre Starck

Nicholas John Ainger

Smita Puntambekar

Robert Machen

1. 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): R—CH═CH—CH—SOM(I) in which Ris 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) R—N(CH)—CH—COOM(II) wherein R=C12 (Lauryl) or Coco derived; an alkyl hydroxy sultaine of general formula (III), R—N+(CH)—CH—CH(OH)—CH—SOM(III) wherein R=C12 (Lauryl) or Coco derived; an alkyl aminopropyl hydroxy sultaine of general formula (IV), R—CO—NH—(CH)—N(CH)—CH—CH(OH)—CH—SOM(IV) wherein R=C12 (Lauryl) or Coco derived; an alkyl amphoacetate of general formula (V), R—CO—NH—(CH)—N(CH—CH—OH)(CH—COOM) (V) wherein R=C12 (Lauryl) or Coco derived; and mixtures thereof; (iii) from 0.05 to 0.9 wt % of a cationic conditioning polymer; (iv) from 0.05 to 10 wt % of a silicone emulsion; (v) a cationic deposition polymer; (vi) an inorganic electrolyte; and (vii) water in which the weight ratio of (i) to (ii) ranges from 1:1 to 6:1 and the pH of the composition is from 3 to 6.5.

Sulphate-free and nonionic surfactant-free cleansing composition

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.

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Mancot, United Kingdom

Annie Jaye Galpin