-
Problem with soaping effect / foam in cream and milk body
Hi everyone !
I write here because I meet some problems with my formulations. In these, I use a self-emulsifiying base at 11% for the milk, and 15% for the hand cream.
This base is made of Potassium Palmitoyl Hydrolyzed Rice Protein; Cetearyl Alcohol; Prunus Amygdalus Dulcis Oil; Glyceryl Stearate; Sucrose Stearate (Syn Hydro Cream). Those formulations are made without heat (in cold process).
The oil phase represents 7% for the milk, and 10% for the hand cream.
The problem is that i see a vortex during the mix, which incorpored some air => after the formulation, the texture is foamy. I tried to add some ethanol but the problem is still there. I don’t want use dimethicone, because my cosmetic products must to be natural ( I use only some ingredient with high index of natural origin).Do you know what can i do ?
Thank you very much
-
3 Replies
-
Mix without making that ‘votrex’.Dimethicone is used to prevent soaping during application, not to prevent air incorporation due to unappropriate mixing techniques.Besides that, you might want to try with a lowre amount of base and a thickener in the water phase to maintain an equal viscosity. -
Thank you very much, I will try like this. I will give you some news!
-
What equipment are you using to form the emulsion? A homogenizer, a stir plate or an overhead stirrer?
Sucrose Stearate will generally foam if you homogenize it in the water phase. If you then follow up with a paddle stirring @300RPM with an overhead stirrer it will help deaerate the mixture. Don’t use a stir plate as the magnetic stir bars will often introduce air into the system.
Log in to reply.