The invention provides a hair shaping composition suitable for topical application to hair, the composition having a pH of 6 or less and comprising, in an aqueous continuous phase: (i) at least 0.5% (by weight based on the total weight of the composition) of one or more silk sericins, and (ii) at least 0.5% (by weight based on the total weight of the composition) of one or more aliphatic di- or tricarboxylic acids or salts or hydrates thereof.15 The invention also provides a method for shaping hair which comprises the steps of (a) treating the hair by topical application of a hair shaping composition as defined above, followed by (b) mechanically shaping the treated hair.
