Home Cosmetic Science Talk Formulating Has anyone tried making alcohol gel with a cellulose thickener like HPMC, HEC, CMC, etc?

  • Shams

    Member
    May 13, 2020 at 11:46 pm

    I tried both HEC and xanthan gum for a 70%w/w alcohol content and both didn’t work.
    Xanthan gum can hold up to 60% alcohol , but not more

  • hobbiz

    Member
    May 15, 2020 at 7:23 am

    There is also an alternative to Ultrez 21, which is Ulcatrez 20 I think, same INCI.
    FOr other thickener:
    HEC: may gel but its soaping and foaming make it suck.
    Xanthan gum: not work well.
    Siligel: expensive and sticky.

  • em88

    Member
    May 15, 2020 at 8:57 am

    Tested HEC hhx 250, it doesn’t work,
    Tested HPC high molecular mass, it works 
    I will try hpmc high molecular mass as soon as I have a little more time. 
    The problem with cellulose polymers is their ability to form noticable films, which will affect the sensory feeling. 

  • Gunther

    Member
    May 15, 2020 at 6:40 pm

    hobbiz said:

    There is also an alternative to Ultrez 21, which is Ulcatrez 20 I think, same INCI.

    Interesting.
    What’s the manufacturer name for Ulcatrez?
    (Google ain’t helping, it believes I’m looking for “Alcatraz”, not Ulcatrez, LOL)

  • Ian_Foster

    Member
    May 17, 2020 at 8:41 pm

    I attended a recent on line seminar where Tylose PSO 810001 was recommended for this application.   A clip from the presentation says “Tylose PSO 810001 thickens ethanol/water mixtures of any ratio”
    The suggested formulations was:
    Ethanol / water / glycerine (final concentration of ethanol: approx. 80 % v/v) 1. Ethanol 95 % v/v: 80,00 g 2. Water : 16,00 g 3. Glyerin: 3,00 g 4. Tylose PSO 810001: 0,5 – 1 g (dependent on the required viscosity).

  • letsalcido

    Member
    May 18, 2020 at 2:07 am

    These people did it with HEC https://www.ahal.mx/collections/antibacterial/products/gel-antibacterial

    Although I don’t know if the ingredient lists are accurate because I saw a serum (mix of oils only) with Ascorbic Acid listed as ingredient… Either it’s just precipitated at the bottom of the bottle or they’re using Ascorbyl Palmitate or another liposoluble vitamin C…

    So take it with a grain of salt.

  • HSC2020

    Member
    May 18, 2020 at 3:20 pm

    I hv done. Both the high molecular cellulose dissolved separate ly by water . When the solution are effective. then add alcohol in HPMC solution. After mixing add HEC solution to that solution. 

  • HSC2020

    Member
    May 18, 2020 at 3:22 pm

    Quantity as your formulation

  • Pharma

    Member
    May 18, 2020 at 7:14 pm

    hobbiz said:

    There is also an alternative to Ultrez 21, which is Ulcatrez 20 I think, same INCI…

    The same INCI doesn’t mean much when it comes to complex polymers ;) . Not even simple chemicals have to be chemically identical just because they have the same INCI (unfortunately cosmetics doesn’t know IUPAC nomenclature).

  • OldPerry

    Member
    May 18, 2020 at 7:23 pm

    @Pharma - Indeed.  I remember learning chemical nomenclature in college and then being surprised that I didn’t know what half the ingredients on my shampoo bottle were.  But the cosmetic industry probably figured IUPAC names were too long to fit nicely on the packaging and too irrelevant to consumers. Also, imagine trying to come up with a single molecular name for the numerous blends of ingredients used.

  • hobbiz

    Member
    August 31, 2020 at 4:56 am

    Pharma said:

    hobbiz said:

    There is also an alternative to Ultrez 21, which is Ulcatrez 20 I think, same INCI…

    The same INCI doesn’t mean much when it comes to complex polymers ;) . Not even simple chemicals have to be chemically identical just because they have the same INCI (unfortunately cosmetics doesn’t know IUPAC nomenclature).

    Yes it is, especially with Carbomer range :)) . However, for Ultrez 20, a good alternative with same INCI and same function is Ultrathix 21 (SOrry I mistyped the commercial names) @g@Gunther
    I did some test and they both did well similarly

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