Home Cosmetic Science Talk Formulating Brow Soap

  • Brow Soap

    Posted by KarolinaPL on July 9, 2021 at 5:35 am

    Hi, I’m working on an eyebrow soap similar to “Lash Brow Soap Brows”. The ingredience list :Water, Glycerin, Steareth-21, PVP, Parfum, DMDM ​​Hydantoin.
     I tried adding  1% PVC and 20/ 30 /35% Steareth-21, but I only get sticky non-transparent product which in no way resembles to the target product. Any idea how to make transparent semi-solid brow soap?

    KarolinaPL replied 2 years, 3 months ago 3 Members · 13 Replies
  • 13 Replies
  • KarolinaPL

    Member
    July 14, 2021 at 5:46 am

    I saw that the label states China as the country of production, so I decided not to stick to the ingredients on the label. I replaced steareth with ceteareth-20 (40%) and managed to achieve a clear semi gel, but it is still too sticky.

  • Stanley

    Member
    July 23, 2021 at 10:40 pm

    you can do a brow gel with glycerin soap and fibers to it..

  • bill_toge

    Member
    July 24, 2021 at 10:09 pm

    what’s the K number of the PVP you’re using?

  • KarolinaPL

    Member
    July 26, 2021 at 7:54 am

    Stanley said:

    you can do a brow gel with glycerin soap and fibers to it..

    My client said that he doesn’t want to have any detergent/ NaOH etc in his brow soap

  • KarolinaPL

    Member
    July 26, 2021 at 7:55 am

    Bill_Toge said:

    what’s the K number of the PVP you’re using?

    K-90 and K-30. But I got better results with 90

  • Stanley

    Member
    July 26, 2021 at 3:36 pm

    Use beeswax does your client have a benchmark?

  • KarolinaPL

    Member
    July 27, 2021 at 5:25 am

    Stanley said:

    Use beeswax does your client have a benchmark?

    He want to have sth similar to Lash Brow Soap Brows https://sklep.lashbrow.pl/en_US/p/Soap-brows-Lash-Brow/694

    Unfortunately beewax is not an option for him

  • bill_toge

    Member
    July 27, 2021 at 8:38 pm

    K-90 is sticky and fibrous by nature; try using K-30, and adding PEG-40 or PEG-60 hydrogenated castor oil for a more subtle effect

  • KarolinaPL

    Member
    August 3, 2021 at 5:22 am

    @Bill_Toge @Stanley . thank you for your answears. I am still wondering if it is possible to make eyebrow soap on steareth-21 and get transparent soap . I also wonder about the preservative - the mass remains liquid up to 80oC. Will any preservative be able to handle this temperature? I was thinking about  DMDM Hydantoin or phenoxyethanol

  • KarolinaPL

    Member
    August 5, 2021 at 8:12 am

    I have one more problem. When i’m adding PVP (2%) , soap turns opaque. Would dimethicone or isopropyl myristate help? 

  • bill_toge

    Member
    August 9, 2021 at 8:21 pm

    phenoxyethanol is stable up to 120 °C; I wouldn’t recommend using DMDM hydantoin above about 60 °C

  • KarolinaPL

    Member
    August 13, 2021 at 9:10 am

    Bill_Toge said:

    phenoxyethanol is stable up to 120 °C; I wouldn’t recommend using DMDM hydantoin above about 60 °C

    thank you .

  • KarolinaPL

    Member
    August 13, 2021 at 9:14 am

    my formula keeps getting better, but the soap is opaque and leaves tiny white lumps on the eyebrows. I want to add Peg-40 Hydrogenated Castor Oil. This should help with my clarity, but I’m not sure what I can do with the white flecks

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