Post Emulsification techniques
Can anyone provide any information or guidelines re: adding liquids (water) post emulsification? To what extent can I add water soluble actives after the emulsion is formed (emulsifying wax + water only, for example). From my understanding there is some type of critical mass that is established where liquid formula additions will go directly to the ‘droplets’, and this is why you can add heat sensitive preservatives at the end. Of course, this is a very small quantity for preservatives. I was more wondering about adding larger quantities.
As an example, after the water + emu wax emulsion is formed, the product weighs in at 10oz, it is a very thick cream/body butter consistency. What percent of that 10oz can I add in a room temperature liquid form that will go directly to the established emulsion, dispersed, without breaking it? I understand that the sheer amount of different emulsification agents and their different properties is going to make answering this question a challenge. I’m really just asking for generalities and I have provided that the emulsified product is a very thick cream, and after adding liquid it would likely thin out to a lotion. Is this even good practice? Consistency and long term stability aside, is adding up to 50% (5oz water to the 10oz emulsion) even remotely feasible?
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