bubbles problem with shampoo formulation
Hi,I am trying to formulate sulfat free shampoo by using surfactants such as Sodium Lauroyl Sarcosinate, decyl glucoside and cocamidopropyl betaine. I have tried various thickener such PEG-150 Distearate, glycol distearate, Guar Hydroxypropyl Trimonium Chloride and PEG-150 pentaerythrityl Tetrastearate (Crothix PA from Croda). My problem is that every time I am using all these thickener, I am getting lot of micro bubbles in my shampoo. Could anyone tell me, how to mix various water phase and surfactants phase without generating bubbles in the mixture. How these thickeners should be used? I mean in which phase thickeners should be mixed and melted? Any help will be really helpful. Thanks
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