Home Cosmetic Science Talk Formulating sulfate free formulation

  • sulfate free formulation

    Posted by khoikhoa on April 18, 2018 at 3:22 am

    Dear All,

    I make this formulation like below:

    Viscosity is ok but after 2 days in 45 degree celcius , it is separeted. How could you request to me thickener that use for this formula.

    Thanks,

    Guar
    Hydroxypropyltrimonium Chloride
                 0.150000
    Carbomer              0.250000
    PEG-150 Distearate              0.250000
    Sodium Cocoyl Isethionate              7.000000
    Polyquaternium-10              0.150000
    Sodium Hydroxide              0.105000
    PPG-15 Stearyl ether              0.300000
    Cocamidopropyl Betaine              7.000000
    Cocamide MEA              5.000000
    Glycol Stearate              1.000000
    Dimethiconol, TEA-Dodecylbenzenesulfonate, Trideceth-10

                 1.500000
    Water, Amodimethicone, Trideceth-10              0.800000
    Panthenol              0.100000
    Fragrance              1.200000
    Argan oil Ultra refined              0.050000
    Citric Acid              0.050000
    Methylchloroisothiazolinone,

     Methylisothiazolinone

                 0.100000
    Sodium Chloride              0.600000
    Aqua                74.3950
    khoikhoa replied 5 years, 11 months ago 3 Members · 6 Replies
  • 6 Replies
  • belassi

    Member
    April 18, 2018 at 5:10 pm

    1. In my opinion you do not have enough active material of surfactants to make a good shampoo, I would be looking to double the quantities.
    2. It is highly unlikely that 5% of CMEA will remain in solution. In my experience the maximum is 2% and even that can be difficult in low temperatures, I recommend 1.5% maximum.
    3. Those preservatives are implicated in the death / serious injury of dogs and cats, I would avoid using them at all costs. (See class action lawsuits against Harz)

  • khoikhoa

    Member
    April 19, 2018 at 4:08 am

    Dear Belassi,

    Thank a lot for your comment. I work for OEM company and my customer who want to make sulfate free shampoo with low cost so active mterial of surfactant low.  I think carbomer or PEG-150 stearate can not use for this formula. How could you recommend to me what kind of thickener can be use in order stability this formulation

    I know that CMIT/MIT not safety for personal care but in my country it is still using with  concentrate maximum can not over 15 ppm

  • bill_toge

    Member
    April 19, 2018 at 7:03 am

    the first thing I’d do is try removing carbomer - it’s anionic, and guar hydroxypropyltrimonium chloride and polyquaternium-10 are cationic

  • khoikhoa

    Member
    April 19, 2018 at 8:55 am

    My problem can not find thicker using for this formualtion with good stability. I know that with mild surfactant base having low viscosity

  • belassi

    Member
    April 19, 2018 at 4:16 pm

    How could you recommend to me what kind of thickener can be use in order stability this formulation
    You are already using PEG150 distearate at 2.5% which is the upper limit for this thickener, in fact, I don’t like more than 1.5% because of its tendency to cause pseudo-plastic flow. CMEA acts as a thickener but can’t be used at more than 1.5% because it will precipitate out. Unfortunately, you are going to discover that effective thickeners are more expensive than surfactants. I use Glucamate VLT at about 3% plus 1% CMEA and 1.5% glycol distearate. Glucamate is a thickener that enhances foam and provides great sensorials but it is expensive.

  • khoikhoa

    Member
    April 20, 2018 at 8:03 am

    Dear Belassi,

    I remove carbopol and increase Peg-150 distearate to 0.5%, Betain from 7 to 11%. CMEA 2 %. viscosity of finish good is ok. I am following stability of product at 45 & 50 degree celcius. If i have good news, i will share to you. Thanks,

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