Home Cosmetic Science Talk Formulating Cosmetic Industry Resources Sodium cocoyl isethionate

  • Sodium cocoyl isethionate

    Posted by paprik on August 21, 2020 at 9:17 pm

    Hello awesome people,

    I’ve recently started to work with SCI and I’m wondering, what is the minimum input of SCI, to be able to thicken the product with a salt? 
    I’m trying to do “very mild baby foam gentle” cleanser for my friend and don’t really want to thicken it with any gum or cellulose ( well, will do if neccessary :) ). I would like to take the advantage of the salt. Is there any easy answer to this? 

    Thank you so much! And thanks for this forum, I’m super enjoying it :)
    P.

    Ronal replied 3 years, 6 months ago 5 Members · 8 Replies
  • 8 Replies
  • ngarayeva001

    Member
    August 23, 2020 at 7:44 am

    There’s an easy answer. SCI isn’t supposed to be used at aqueous products at any significant percentage to make it primary surfactant. It will precepitate.

  • paprik

    Member
    August 23, 2020 at 7:52 am

    There’s an easy answer. SCI isn’t supposed to be used at aqueous products at any significant percentage to make it primary surfactant. It will precepitate.

    Thank you for your reply. I really appreciate that.

    Would you please recommend alternative to that? Or what would be the maximum of SCI in the formula to have is stable? 

  • ngarayeva001

    Member
    August 23, 2020 at 8:00 pm

    This is an alternative to SCI. It’s very mild https://www.ulprospector.com/en/eu/PersonalCare/Detail/3904/97777/Iselux

  • grayautumnday

    Member
    September 18, 2020 at 11:28 pm

    There’s an easy answer. SCI isn’t supposed to be used at aqueous products at any significant percentage to make it primary surfactant. It will precepitate.

    Is it possible to use SCI as a tertiary surfactant in a liquid skin or hair cleanser and still achieve a mostly clear product (lower precipitation probability)?

    I have seen a MakingCosmetics surfactant blend (I think the primary was decyl glucoside) that is marketed for use in clear liquid surfactant systems.

    I’m working on a hair/body wash commissioned formula for a nonprofit (use case - portable foot-pump hand wash stations in homeless encampments) and the combination of mildness, rinsability with less water, and lower materials cost are all issues.

    (I would post a separate thread, except this already exists specifically to discuss SCI)

  • ngarayeva001

    Member
    September 19, 2020 at 6:00 am

    If it comes in a blend it’s probably at a low % and you should be able to use it. 

  • ngarayeva001

    Member
    September 19, 2020 at 6:07 am

    @grayautumnday
    By the way, if it’s for non for profit  and you care about cost you might want to go SLES/CAPB route. It would be easier to make and economical. It can be mild, just don’t make active surfactant mass too high and use a little more of CAPB. Plus you can thicken it with salt. With glucosides you would need additional ingredients to thicken the product.

  • belassi

    Member
    September 19, 2020 at 2:36 pm

    Iselux is not for your application. I tried it and decided that it was too expensive by far.

  • Ronal

    Member
    September 27, 2020 at 1:36 am

    SCI is mild but easily precipitated on liquid formula. SCI better for solid soaps, if you insist on using SCI

Log in to reply.