Home Cosmetic Science Talk Formulating Gritty deodorant

  • Gritty deodorant

    Posted by doreen on June 20, 2018 at 3:09 pm

    I’ve made a deodorant/antiperspirant with a few actives a few days ago.
    Point is, something seems to have precipitated as the cream feels like there is a bit of very fine sand in it.

    A )
    Distilled+deionized water ad 100
    3.0%    Glycerin
    0.4%    Allantoin
    30.0%  Locron L (50% aluminum chlorohydrate in water)

    B )
    6.0%    GMS + Ceteareth-20
    3.0%    Cetearyl Alcohol
    4.0%    Triethyl Citrate
    2.0%    Dimethicon 100 cSt.
    3.0%    Isopropyl Myristate

    B1 )
    1.5%    Sepimax Zen

    C )
    0.5%    Cyclopentasiloxane
    2.0%    Vari Stan PE (Propanediol, Garcinia Mangostana Peel Extract)
    1.0%    Phenoxyethanol (90%), Ethylhexylglycerin (10%)

    Phase A: 70C
    Phase B + B1: 70C
    A+B
    <40C Phase C one by one.

    Phases start separating immediately, but after vigorous high shear mixing it emulsifies into a very viscous emulsion, too thick for my pH meter to get a stable reading.

    I don’t know if the ‘sand’ is aluminum or allantoin.

    Any ideas or suggestions?

    doreen replied 5 years, 9 months ago 2 Members · 3 Replies
  • 3 Replies
  • doreen

    Member
    June 21, 2018 at 6:09 am

    Btw: the cool down was rather quick (put in fridge, I was in a hurry) :grimace:

  • chemist77

    Member
    June 21, 2018 at 7:41 am

    You think you can try to dissolve that precipitate in water and see if it completely disperses or not. Should give you an idea what it could be. 

  • doreen

    Member
    June 21, 2018 at 8:13 am

    @Chemist77
    Ok, thanks or the tip! :+1:
    I’ll let you know what it was!

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