HAIR TREATMENT COMPOSITIONS COMPRISING PARTICULATE SUBSTANCES

摘要

A hair treatment composition which comprises 0.01-5.0 wt% of a particulate substance which is substantially unagglomerated or unaggregated prior to incorporation in the composition, which particulate substance has a modal primary particle size of 7-40 nm, and a Young modulus of at least 4 Gpa, preferably at least 6 GPa, wherein the particulate substance is a silica, a cross-linked polymer, an alumina, an alumina silicate, or a colloidal metal such as titanium dioxide. The association between the primary particles in the composition is such that at least 75 % of the particles are in the form of monodisperse primary particles or have an associated particle size of less than 100 nm.