Home Cosmetic Science Talk Formulating Silicone for Enhancing spreading and reducing tackiness

  • singhc10

    November 17, 2020 at 3:42 pm

    @Abdullah you could try

    • Dimethicone 10cst 
    • Trisiloxane 1cst
    • D5(okay for North America, banned in Europe)

    D5 is really good, have used in sunscreen lotions with waxes

  • Abdullah

    November 17, 2020 at 11:35 pm

    @singhc10 which one is better?
    Dimethicone 10cst vs Dimethicone 5cst 

  • singhc10

    November 18, 2020 at 11:52 am

    @Abdullah since your making making a cream/lotion, it does not matter. 5cst has higher spreadability, but  I would go with whichever one is cheaper

  • Unknown Member

    Deleted User
    November 18, 2020 at 1:45 pm

    Hi @Abdullah,

    D5 (cyclopentasiloxane) would probably be the best in terms of leaving little residue, but as mentioned previously, it is restricted for use in the EU in wash-off products to below 0.1% (so you may see some silicone suppliers labelling their other silicones as “<0.1% cyclics” for this reason), and is soon to be restricted in leave-on products.

    Caprylyl methicone, methyl trimethicone, disiloxane and trisiloxane are all also low viscosity or volatile and would feel very light, but due to the chemistry by which they are manufactured, the longer-chain silicones (and therefore higher viscosity) are more abundant and therefore cheaper.

    I would suggest either caprylyl methicone or a dimethicone of 2cS or 5cS for texture, but perhaps 50cS or 100cS to keep prices lower. If they are at a low percentage (perhaps 1-3%) you won’t notice a huge difference in texture of the finished product.

  • Abdullah

    November 21, 2020 at 12:40 pm

    @singhc10 @klangridge thanks a lot for your information. 

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