Sulfate free personal cleansing composition comprising low inorganic salt
Sulfate-free personal cleansing compositions that include an acyl taurate anionic surfactant, a cationic deposition polymer, little or no inorganic salt and an aqueous carrier. The composition is phase stable, avoids in situ coacervate formulation and forms a coacervate upon dilution with water.
1 . A cleansing composition comprising:
a) about 3 wt % to about 35 wt % of an acyl taurate anionic surfactant;
b) about 3 wt % to about 15% of an amphoteric surfactant;
c) about 0.01 wt % to about 2 wt % of a cationic polymer having a weight average molecular weight of 300,000 g/mol to about 3,000,000 g/mol;
d) 0 wt % to about 1.0 wt % of inorganic salts; and
e) an aqueous carrier,
wherein the composition is substantially free of sulfate-based surfactant and does not form a coacervate prior to use.
2 . The composition of claim 1 , wherein the acyl taurate anionic surfactant is selected from sodium, ammonium and potassium salts of methyl cocoyl taurate, methyl lauroyl taurate and methyl oleoyl taurate, and combinations thereof.
3 . The composition of claim 2 , wherein the acyl taurate anionic surfactant is selected from sodium methyl cocoyl taurate, sodium methyl lauroyl taurate, sodium methyl oleoyl taurate and combinations thereof.
4 . The composition of claim 1 , wherein the cationic polymer is selected from the group consisting of cationic guars, cationic cellulose, cationic synthetic homopolymers, cationic synthetic copolymers, and combinations thereof.
5 . The composition of claim 4 , wherein the cationic polymer is selected from the group consisting of hydroxypropyltrimonium guar, Polyquaternium 10, Polyquaternium 6, and combinations thereof.
6 . The composition of claim 1 wherein the inorganic salt is selected from the group consisting of sodium chloride, potassium chloride, sodium sulfate, ammonium chloride, sodium bromide, and combinations thereof.
7 . The composition of claim 1 , wherein the composition has a viscosity lower than about 5000 cps.
8 . The composition of claim 1 wherein the composition is delivered as a foam.
9 . The composition of claim 8 , wherein the composition comprises a propellant.
10 . The composition of claim 8 , wherein the foam is delivered from a mechanical pump foamer.
11 . The composition of claim 1 further comprising silicone conditioning agents.
12 . The composition of claim 11 , wherein the silicone conditioning agent is an emulsion with particle size of less than about 30 microns.
13 . The composition of claim 1 , wherein the amphoteric surfactant is selected from the group consisting of betaines, sultaines, hydroxysultanes, amphohydroxypropyl sulfonates, alkyl amphoactates, alkyl amphodiacetates and combination thereof.