Problems with this formula, which contains 25 g Benzyl benzoate?? ?

The cream base is analogous to cool ointment PB V, which is an unstable W/O cream. Here it is attempted to increase the stability of the W/O cream by adding borax, which reacts with the free fatty acids present in the fat phase. For instance, soaps such as after Stearate are formed, which are O/W emulsifiers, but because of their solubility in water give the water droplets a negative charge. This leads to increased repulsion of the dispersed water droplets. In this way the stability of the KOELZAF is not greatly increased because one wants to maintain an unstable cream, which breaks when applied to the skin and by evaporation of the freed water has a cooling effect.  

The prescribed Benzyl benzoate decreases   The constence of the external oil phase and this is a non-insignificant problem.  

That is why I believe that an active W/O emulsifier, which stabilises   The WO emulsion, will have to be appealed to this at the expense of the cooling effect. But I suspect that the latter is of secondary importance here.  

One can add 6 g Arlacel C