Can anyone confirm if it is necessary to have an amphoteric surfactant in the mix? Does this make it milder? Or am I ok with two or three anionic? I do have some cationic ingredients in my mix as well.
do you have her site? i have not updated or visited my links in a while.Amphoteric surfactacts add to mildness and help to stabilize foam. Susan Swift recommends a combination of anionic and amphoteric surfactants for regular shampoo. The percentages of each can be adjusted for different products such as bubble bath, shower gel, etc. According to Susan, amphoteric surfactants also rinse off easily. I suggest you consider buying Suan's e-zine Surfactants: a Reference Guide.
I don't know if this will be of any assistance but I did a quick Google search on the Reference Guide (I think one needs to subscribe and logged in to get it or access it). Link: https://www.swiftcraftymonkey.blog/surfactants/do you have her site? i have not updated or visited my links in a while.
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