Home Cosmetic Science Talk Formulating General Higher pH but doesn’t cause rashes

  • Higher pH but doesn’t cause rashes

    Posted by PVP on July 27, 2020 at 2:58 pm

    Magnesium hydroxide has a higher pH than baking soda. What makes it less irritating to the skin and how come it does not cause burns like baking soda? TIA.

    PVP replied 3 years, 9 months ago 2 Members · 4 Replies
  • 4 Replies
  • Pharma

    Member
    July 27, 2020 at 6:52 pm
    It’s very poorly water soluble which means, there is nearly no free base available which therefore gets neutralised easily. Nonetheless, it can burn skin even more but requires more time (and more sweat).
  • PVP

    Member
    July 27, 2020 at 7:18 pm

    @Pharma
    Thank you. So prolonged exposure will do the damage?

  • Pharma

    Member
    July 27, 2020 at 7:30 pm

    As long as it stays wet, yes, sure. Go work constructions and you’ll know what I mean 🙂 .

  • PVP

    Member
    July 27, 2020 at 7:39 pm

    Pharma said:

    As long as it stays wet, yes, sure. Go work constructions and you’ll know what I mean 🙂 .

    Well said. Thanks for the insight :).

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