Home Cosmetic Science Talk Formulating General Preservative percent usage

  • Preservative percent usage

    Posted by Kunal on November 25, 2020 at 4:20 pm

    Hey 
    I am using 75% dm water in my shampoo and 85% in lotion, keeping these percentages in mind how much percent dmdmh shall I use in both.
    Thanks in advance 

    ozgirl replied 3 years, 10 months ago 2 Members · 1 Reply
  • 1 Reply
  • ozgirl

    Member
    November 26, 2020 at 10:03 pm
    The amount of a preservative used is a percentage of the total formulation. Usage is not based on the amount of water.
    Check with your supplier on recommended usage rates.

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