Effect of PEG40 hydrogenated castor oil on thickening of shower gel formulation
Would really appreciate some insight on the following…
Formulating a shower gel with sodium coco sulphate and lauryl glucoside as the surfactants. Total active matter = 14%.
Also have some oils and perfume in the formulation (total 2.4%). Formulation is not clear when made up so I was concerned about stability so wanted to try adding a solubiliser.
Mixed the oils with 2% PEG 40 Hydrogenated castor oil and added to the surfactant/water mix.
However, this mix did not thicken with salt (the one without the PEG40 hydrogenated castor oil did).
Is it normal for PEG40 HCO to reduce the thickening ability of the salt?
Also in the formulation is aloe vera powder 200x (0.05%).
Heat water and sodium coco sulphate to 40 degrees C.
Add lauryl glucoside.
Heat PEG 40 HCO until liquid and add oils. Mix and add to previous phase.
Add aloe vera powder.
Add preservative (benzyl alcohol and dehydroacetic acid).
It would be great to get your thoughts! Thanks in advance.
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