Concentrated shampoo dosage of foam for providing hair care benefits comprising an anionic/zwitterionic surfactant mixture
Described herein is dosage of foam including from about 5 cm 3 to about 70 cm 3 of the foam. The foam includes from about 0.5 g to about 4 g of a detersive surfactant; from about 0.001 g to about 4 g propellant; a foam density of from about 0.04 g/cm 3 to about 0.23 g/cm 3 ; and a bubble size distribution having an R 32 of from about 30 μm to about 60 μm.
1. A dosage of foam shampoo comprising a volume of from about 5 cm 3 to about 150 cm 3 of the foam, wherein the foam comprises:
a) a detersive surfactant system comprising:
i) from about 15 wt. % to about 30 wt. % anionic surfactant selected from the group consisting of sodium undecyl sulfate, sodium laureth sulfate, sodium lauroyl isethionate, sodium cocoyl isethionate, sodium laurethsulfosuccinate, sodium laurylsulfosuccinate, and mixtures thereof;
ii) from about 2 wt. % to about 12 wt. % zwitterionic surfactant selected from the group consisting of lauramidopropyl betaine, cocoamidopropyl betaine, lauryl hydroxysultaine, and mixtures thereof;
b) from about 0.0035 g to about 0.7 g of a particulate selected from the group consisting of zinc pyrithione, zinc carbonate, ethylene glycol distearate, mica, titanium dioxide, and combinations thereof; and
c) from about 45 wt. % to about 78 wt. % water; wherein:
1) the foam has a foam density of from about 0.04 g/cm 3 to about 0.23 g/cm 3 ; and
2) the foam has a plurality of bubbles comprising a bubble size distribution having a Sauter mean radius R 32 of from about 10 μm to about 60 μm as measured according to the Kruss Lather Analyzer Method.
2. The dosage of foam of claim 1 , wherein the plurality of bubbles comprises a bubble size distribution having a Sauter mean radius R 32 of from about 10 μm to about 50 μm.
3. The dosage of foam of claim 1 , wherein the plurality of bubbles comprises a bubble size distribution having a Sauter mean radius R 32 of from about 30 μm to about 50 μm.
4. The dosage of foam of claim 1 , comprising a yield point of from about 15 Pa to about 100 Pa.
5. The dosage of foam of claim 1 , wherein the volume of the dosage of foam is from about 10 g/cm 3 to about 50 g/cm 3 .
6. The dosage of foam of claim 1 , wherein the foam density is from about 0.06 g/cm 3 to about 0.23 g/cm 3 .
7. The dosage of foam of claim 1 , wherein the foam density is from about 0.06 g/cm 3 to about 0.15 g/cm 3 .
8. The dosage of foam of claim 1 , wherein the particulate comprises zinc pyrithione.
9. The dosage of foam of claim 1 , wherein the plurality of bubbles comprises a bubble size distribution having a Sauter mean radius R 32 of from about 30 μm to about 45 μm.