Do you have a proposal concerning the implementation of next shampoo? Lactic acid 3g Salicylic acid 6g Hydrolan 15g after lauryl sulfate 60g nystatin 2000 KIE erythromycin 2g Aqua AD

It is very difficult to predict which ingredients will remain in solution. For Hydrolan we take PEG 1500. This is melted in a beaker and we dissolve it on lactic acid and salicylic acid. I fear that erythromycin will dissolve in PG 1500 and when diluting with water will remain in solution. The Nystatin can also be mixed with this molten mass. Nalauryl Sulfate is dissolved in 200 ml of water and this solution is slowly mixed with the melted PEG mass, stirring continuously. The whole is brought to volume and mixed to homogeneous. It is checked whether the precipitation is well-sheldable and does not precipitate too quickly. If not, a small viscosity increase should be considered with e.g. methyl cellulose.