• Silicon

    Posted by Anonymous on July 25, 2017 at 8:30 pm

    Hi everybody 
    I am trying to do a cream and I incorporate 6% of a mixture of Cyclomethicone & Dimethicone & Phenyl trimethicone but I noticed that after one day my formulation was not stable and I could see some silicone in the top of my cream 
    My formula is below, do you know if my formulation is missing some emulsifier ? Do you know how can make my formulation more stable ?
    Thank you very much 

    INCI %
    Water     69,2
    Glycerin 2,00
    Polyglyceryl-6 Distearate 2,00
    polyglyceryl-10 Oleate 2,00
    Glyceryl Stearate 4,00
    Stearyl Alcohol  3,00
    Sclerocarya birrea Seed oil  2,00
    Niacinamide 0,50
    Water & Pentylene Glycol & Rhodiola rosea Root Extract 0,30
    Caprylic/Capric Triglyceride 1,00
    Cyclomethicone & Dimethicone & Phenyl Trimethicone 6,00
    Tapioca Starch and water 6,00
    Parfum 0,50
    Benzyl Alcohol & Salicylic Acid & Glycerin & Sorbic
    belassi replied 6 years, 9 months ago 1 Member · 1 Reply
  • 1 Reply
  • belassi

    July 25, 2017 at 9:30 pm

    Silicones are notoriously difficult, you will just have to play around with it. You could begin by trying a quick fix, EG:
    try replacing the glyceryl stearate with Dow Corning ES 5300 formulation aid - begin at say 4% and try reducing the C/D/P cones from 6% to 4% at the same time. Adjust.

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