Abstract: Disclosed are treatment compositions comprising a liquid emulsifiable concentrate which comprises a chemically unstable reactive agent wherein the reactive agent is comprised of one or more reactive groups of the electrophilic, nucleophilic or protected thiol type, a water immiscible solvent, one or more surfactants, which is usable upon dilution within a separate aqueous composition to form a micro- or macro-emulsion in-situ immediately prior or simultaneous to application to the substrate and wherein the reactive agent is chemically shelf stable. Also disclosed are methods for treating amino acid based substrates, and methods for bleaching, coloring and conditioning hair with these treatment compositions.

Abstract: Emulsion treatment compositions comprise an aqueous continuous phase and a discontinuous phase in the form of an oil-in-oil emulsion. The oil-in-oil emulsion comprises a reactive component including a reactive agent and an internal oil, wherein the internal oil solubilizes the reactive agent, and a middle oil in which the reactive component is dispersed. The middle oil is immiscible with the internal oil, does not solubilize the reactive agent, is immiscible in the aqueous continuous phase, and includes a hydrophobic particulate thickener. Methods for treating hair comprise applying the emulsion treatment compositions to hair.

Abstract: Emulsion treatment compositions comprise an aqueous continuous phase and a discontinuous phase in the form of an oil-in-oil emulsion. The oil-in-oil emulsion comprises a reactive component including a reactive agent and an internal oil, wherein the internal oil solubilizes the reactive agent, and a middle oil in which the reactive component is dispersed. The middle oil is immiscible with the internal oil, does not solubilize the reactive agent, is immiscible in the aqueous continuous phase, and includes a hydrophobic particulate thickener. Methods for treating hair comprise applying the emulsion treatment compositions to hair.

Abstract: Disclosed are treatment compositions comprising a liquid emulsifiable concentrate which comprises a chemically unstable reactive agent wherein the reactive agent is comprised of one or more reactive groups of the electrophilic, nucleophilic or protected thiol type, a water immiscible solvent, one or more surfactants, which is usable upon dilution within a separate aqueous composition to form a micro- or macro-emulsion in-situ immediately prior or simultaneous to application to the substrate and wherein the reactive agent is chemically shelf stable. Also disclosed are methods for treating amino acid based substrates, and methods for bleaching, coloring and conditioning hair with these treatment compositions.