A neutralizing composition to effect the second stage of neutralization of a permanent wave operation on the hair is an aqueous solution containing an N-methylol compound as an active compound in amounts of 0.5-12 percent by weight of the composition. An oxidizing agent can also be included in the composition in amounts such that the concentration of active compound and oxidizing agent is less than 1.7 moles/liter.
The invention is related to a composition for the permanent waving of human hair with improved properties of use, containing alkanediols in combination with ammonium carbamate as alkalinizing compound.
Two phase shampoo allowing sequential application of substances/conditions, especially for controlling dandruff, wherein the first phase consists of a detergent composition, together with possible adjuvants, having a neutral or alkaline pH and the second phase, separated from the first phase, comprises a physiologically acceptable acid component, or mixture of such components, which phase is applied immediately after the treatment of the hair and the skin of the head with the first phase. Both phases may contain an antimycotic.
A mild permanent waving process for human hair including the steps of applying a reducing composition containing at least one thio compound, subsequently pre-fixing with a composition containing at least one dithio compound without previous rinsing, and finally fixing with a composition containing an oxidant, especially hydrogen peroxide, in a low concentration.
