GMS vs cetearyl alcohol in emulsion
For comparison of GMS vs fatty alcohol i made two simple emulsions
Sodium lauryl sulfate 0.5%
Xanthan gum 0.3%
Water and others
BPetrolatum 5%Glycerin 5%Sodium lauryl sulfate 0.5%Cetearyl alcohol 4%Xanthan gum 0.3%Water and otherspH 4.8
Both emulsions are stable
Formula A has higher viscosity, less soaping and costs less than B
As fatty alcohol is 2 times more expensive than GMS, i wanted to use just GMS instead of cetearyl alcohol or mixture. Then these questions came to my mind.1. What can cetearyl alcohol do than GMS can’t do in simple emulsions like above?
2. What can cetearyl alcohol do better than GMS in simple emulsion like above
3. Why should i not use just GMS instead of both in a formula because GMS cost less, provide more viscosity and less soaping than cetearyl alcohol?
4. If GMS can do everything cetearyl alcohol do, does it better and also costs less, why everyone is not using it instead of cetearyl alcohol?