Cationic emulsion system questions for lotion
I am using BTMS 50 to create a cationic emulsion. As I understand it, this means that the positive charge will adsorb to our negatively-charged skin, and create a more lasting conditioning effect. Assuming this is correct, I want to add a salt to aid in emulsion stability (I read this somewhere) and for metals sequestration. I also want to lower the ph a bit for stability and for skin compatibility. I have chosen disodium EDTA (at .2%) in hopes that it will help meet these objectives. Can anyone confirm? Deny? Point me in the right direction?
Also, I understand that EDTA carries a negative charge. Might this cancel the positive charge of the emulsion-and consequently, the benefit I am seeking? I I have been unable to successfully google answers to this line of questioning.
Thanks, in advance, for any thoughts!
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