Home Cosmetic Science Talk Formulating How calcium from hard water bind to hair?

  • chemicalmatt

    June 9, 2021 at 3:25 pm

    Ca (and Fe, Mg. Al) ion does not really attach to our hair, it just prevents other charged materials from rinsing off the hair or skin keratin. In other words: its the water not the keratin. Why EDTA is essential to so many formulas. Hair conditioners & dyes, that’s another story: you want those to remain deposited so for those, minerals in your water are your friend.

  • Abdullah

    June 10, 2021 at 12:39 am

    @chemicalmatt so hard water will help the deposition for conditioners like Amodimethicone. Did i get your point? 

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