Just see if I can get lucky to get any twinkle from here. I am trying to develop a body wash formula with Sodium Cocoyl Glycinate as the primary surfactant. However, I didn't get much luck in thickening it up. I have tried the following thickener that works: HEC, Xanthan Gum, PEG-XYZ OPQ, and Ultrez-20.
However, I never found any co-surfactant that can thicken up this surfactant. I noticed that using an extra thickener will decrease the spreadability of the formula.
So, I am trying to put my question here to see if any professional can help with a Co-surfactant can work, or any thickener will provide shear-thinning properties for surfactant.
P.S The formula I tried has the following ingredients (Not organized in order): Sodium Cocoyl Glycinate, Lauric Acid, Myristic Acid, Sodium Cocoyl Alaninate, Water, NANAEDTA, Cocamidopropyl Betain, preservative, Glyceryl Oleate, Xanthan Gum.