Cleanser, bath oils, sunscreens, hair treatment

1 Cleanser, bath oils, sunscreens, hair treatment 

Aftershave gels also require an adjusted flow behaviour. They should be easily spreadable without running off the face before the shave. Microemulsions can be used to formulate clear aftershave gels with very good sensorical properties. A promising base formula is made from a combination of a cross-linking polymer with an o/w microemulsion [7]. 

Microemulsions have also been investigated for the use in chemical hair treatment [14]. Permanent wave products are based on the reduction of hair keratine cystine, which weakens the protein structure and allows a manipulation of the hair shape. Savelli et al. compared the cystine reduction obtained by thioglycolic acid in water with that obtained by a microemulsion. The microemulsion is based on the anionic surfactant sodium dode-cylsulphate, the co-surfactant pentanol and dodecane as the unpolar oil component. The cysteine formation is evaluated over a time period of 5 min. The experimental data are 

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