Home Cosmetic Science Talk Formulating Shampoo doesn’t make hair smooth when wet

  • Shampoo doesn’t make hair smooth when wet

    Posted by Sarka on February 10, 2025 at 8:47 am

    Hello,

    I have a shampoo formula (Coco-Glucoside, Sodium Cocoyl Glutamate, Sodium Cocoamphoacetate), which leaves nice, clean and kinda smooth hair after you dry them. Problem is feeling of rough hair when washing. Is there anything, that could help with this issue? I can’t use any silicon, polyquarternum or cationic guar.
    Do you think that chelating agent, glycerine, or some pressed oil could help? Smoothing agent I use is PCA Glyceryl Oleate (at 1.2%).
    But I think PCA GO doesn’t like Coco-Glucoside, because after about 2 months a thin layer of transparent liquid begins to separate on the surface. Is it possible? And how to prevent it?

    Thank you in advance 🙂

    Fedaro replied 10 hours ago 2 Members · 1 Reply
  • 1 Reply
  • Fedaro

    DIY formulator
    February 10, 2025 at 9:59 am

    In my opinion, you have too many restrictions. You are effectively restricting all of the ingredients that will help you achieve your goal. Glycerin is relatively useless in rinse-off products, but I have heard it can change the feeling upon application, though I’m not completely sure about that. Hopefully someone else can chime in. Good luck!

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