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  • lotion spreadability

    Posted by chum on February 7, 2018 at 6:53 am

    Hello, 
    Back in the university I was taught a little bit about emulsions and lotion making.
    I have been making my own simple lotion at home since then. But there is a problem, i am not satisfied with my results.It does not spread easily,and unlike other  lotions mine does not quickly dissappear on the skin,It takes a lot of time and effort to make it dissapear.And  it does not leave the skin shining and moisturised .
    Please help
    My formulation contains
    Water 82.1%
    Glycerin 8.2%
    Cetyl alcohol 2.7%
    Oil 4.9%
    Centrimide 0.5%
    Beeswax 1.4%
    Methyl paraben 1% 

    OldPerry replied 6 years, 11 months ago 5 Members · 6 Replies
  • 6 Replies
  • OldPerry

    Member
    February 7, 2018 at 2:24 pm

    Beeswax is not a great emulsifier. You should pick something else but the exact one to use will depend on the type of oil in your formula.

    Why are you using Centrimide?

    A silicone would help with spreadability.

  • belassi

    Member
    February 7, 2018 at 4:54 pm

    1. This is not a properly designed formula. Lacks a proper emulsification system. Beeswax is not something that the skin absorbs quickly. If you want a light cream you need to use something such as capric/caprylic trigycerides or squalane…
    2. 1% methylparaben is far too much. 0.3% would be more appropriate and also include 0.15% propyl paraben to protect the oil phase. (One is water soluble the other is oil soluble)
    Replace the cetyl with cetearyl.

  • chemnc

    Member
    February 8, 2018 at 1:06 am

    You may want to rethink parabens as preservative. If you want something foolproof go with Optiphen.

  • chum

    Member
    February 8, 2018 at 6:16 am

    @perry centrimide is good for skin problems,like rashes.
    Thank you all,will be back with adjusted formula results.

  • Doreen

    Member
    February 8, 2018 at 7:19 am

    @chemnc
    Why rethink parabens as a preservative?

  • OldPerry

    Member
    February 8, 2018 at 7:14 pm

    @chemnc - what is your objection to parabens?  If someone wants an effective, safe preservative there is really nothing better.  If someone wants to give in to unproven, scaremongering, then perhaps it’s worth looking at something less reliable.

    Phenoxyethanol (Optiphen) is hardly foolproof.

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