Skin cleansing compositions and methods

1. A skin cleansing composition, consisting of:

a. from about 26% to about 40%, by weight of the composition, of surfactant comprising a zwitterionic co-surfactant and a branched anionic surfactant;

b. from 20% to about 40%, by weight of the composition, of glycerin;

c. greater than 15% to about 20%, by weight of the composition, of perfume;

d. water;

e. optionally a preservative, thickener, hydrophobic oil, additive, soap, pH modifier, additional hydric solvent, an additional surfactant, solvent, dye, acid, sodium chloride, or a combination thereof;

wherein the composition predominantly comprises a lamellar structures comprising at least a portion of the branched anionic surfactant;

wherein the composition forms a microemulsion comprising at least a portion of the perfume upon aqueous dilution;

wherein the composition comprises a weight ratio of surfactant to glycerin of from about 0.4:1 to about 3:1.

2. The skin cleansing composition of claim 1 , wherein the surfactant comprises from about 15% to about 38%, by weight of the composition, of the branched anionic surfactant.

3. The skin cleansing composition of claim 2 , wherein the surfactant comprises from about 2% to about 10%, by weight of the composition, of the zwitterionic cosurfactant.

4. The skin cleansing composition of claim 3 , wherein the zwitterionic cosurfactant comprises cocamidopropyl betaine, laurylamidopropyl betaine, or a combination thereof.

5. The skin cleansing composition of claim 2 , wherein the branched anionic surfactant comprises sodium trideceth-n sulfate, wherein n is from about 0.5 to about 3.

6. The skin cleansing composition of claim 1 , wherein the composition is not a ringing gel.

7. The skin cleansing composition of claim 1 , wherein at least a portion of the composition forms the microemulsion upon dilution with water of about 3:1 by weight (water:composition) to about 10:1 by weight (water:composition).

8. The skin cleansing composition of claim 2 , wherein the branched anionic surfactant is from about 17% to about 30%, by weight of the composition.

9. The skin cleansing composition of claim 3 , wherein the zwitterionic cosurfactant is from about 2.5% to about 5%, by weight of the composition.

10. The skin cleansing composition of claim 9 , wherein the glycerin is from about 30% to about 40%, by weight of the composition.

11. The skin cleansing composition of claim 5 wherein the anionic surfactant comprises sodium trideceth-2 sulfate.

12. The skin cleansing composition of claim 11 , wherein the zwitterionic cosurfactant comprises cocamidopropyl betaine.

13. The skin cleansing composition of any of claim 12 , wherein the composition is in the form of a gel.

14. The skin cleansing composition of claim 1 , wherein the composition has a G′ at about 1 Hz of about 25 Pa to about 5000 Pa.

15. The skin cleansing composition of claim 1 , wherein the composition has a G″ at about 1 Hz of about 18 Pa to about 250 Pa.

16. The skin cleansing composition of claim 1 , wherein the composition does not contain a micellar phase prior to dilution.

17. The skin cleansing composition of claim 1 , wherein the composition comprises from about 30% to about 40%, by weight of the composition, of the surfactant.

18. A skin cleansing composition, consisting of:

a. from about 17% to about 30%, by weight of the composition, sodium trideceth-n sulfate, wherein n is from about 0.5 to about 3;

b. from about 2% to about 5%, by weight of the composition, cosurfactant selected from the group consisting of cocamidopropyl betaine, laurylamidopropyl betaine, or a combination thereof;

c. up to 20%, by weight of the composition, glycerin;

d. greater than 15% to about 20%, by weight of the composition, of perfume;

e. water;

f. optionally a preservative, thickener, hydrophobic oil, additive, soap, pH modifier, additional hydric solvent, an additional surfactant, solvent, dye, acid, sodium chloride, or a combination thereof;

wherein the composition predominantly comprises a lamellar structures comprising at least a portion of the sodium trideceth-n sulfate;

wherein the composition forms a microemulsion comprising at least a portion of the perfume upon aqueous dilution;

wherein the composition comprises a weight ratio of surfactant to glycerin of from about 0.4:1 to about 3:1.

19. A skin cleansing composition, consisting of:

a. from about 15% to about 30%, by weight of the composition, branched anionic surfactant;

b. from about 2% to about 5%, by weight of the composition, zwitterionic cosurfactant;

c. up to 20%, by weight of the composition, glycerin;

d. greater than 15% to about 20%, by weight of the composition, of perfume;

e. from about 35% to about 65%, by weight of the composition, water;

f. optionally a preservative, thickener, hydrophobic oil, additive, soap, pH modifier, additional hydric solvent, an additional surfactant, solvent, dye, acid, sodium chloride, or a combination thereof;

wherein the composition predominantly comprises a lamellar structures comprising at least a portion of the branched anionic surfactant;

wherein the composition forms a microemulsion comprising at least a portion of the perfume upon aqueous dilution;

wherein the composition comprises a weight ratio of surfactant to glycerin of from about 0.4:1 to about 3:1.