Home Cosmetic Science Talk Formulating Skin Effect of high pH soap

  • MarkBroussard

    Member
    February 2, 2019 at 3:35 pm

    There’s an established protocol for measuring the pH of solid soap.  You make a 1% soap solution in hot water and then measure the pH.  Just let the piece of soap sit in hot water until it completely dissolves.

  • Margaret2

    Member
    February 4, 2019 at 3:10 am

    Maybe the people who are prone to develop eczema should just apply a light lotion after showering/bathing, since those are closer to our skin’s pH than the soap. 

    I  wonder if in the DT article the hot water was exacerbating the peoples’ sensitivity to soap’s pH? 

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