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  Sodium methylparaben vs. methylparaben

  Posted by Anonymous on July 10, 2017 at 2:59 pm

  Hi all,
  Can anyone please advise the difference in preservative properties between sodium methylparaben & methylparaben and any preference? Looking to use it as part of a system in a toothpaste formula.
  Many thanks,
  Charlie

  DRBOB@VERDIENT.BIZ replied 8 years ago 1 Member · 1 Reply

  • formula development
  • preservatives
• 1 Reply

• 

  DRBOB@VERDIENT.BIZ

  Member

  July 10, 2017 at 8:53 pm

  I am not aware of any differences in preservation:main difference is solubility in cold water of the sodium salt (Ph is about 9.5) so has to be neutralized during process at some point.

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