Patent ID: 8673273
Filing Date: 2014-03-18
Classification: A61K,A61Q

Abstract:
1. An aqueous based hair straightening composition having a pH from 12 to 14 comprising, as a mixture prior to application to hair: i) a hydroxide based straightening system comprising a hydroxide ion generator selected from the croup consisting of lithium hydroxide, potassium hydroxide, guanidine hydroxide, sodium hydroxide and mixtures thereof; and ii) from 0.5 wt % to 20 wt % of the total composition of urea in which the weight ratio of urea to hydroxide generator is from 12:1 to 3:1 wherein components (i) and (ii) are applied as a mix comprising components i) and ii) before application to the hair and such mixture is applied within 5 minutes or less of mixing.