Home Cosmetic Science Talk Formulating Formulating a profesional strength Glycolic acid gel

  • Formulating a profesional strength Glycolic acid gel

    Posted by Anonymous on April 28, 2014 at 10:51 pm

    I am trying to make the above for what’s referred to in the finished product as at 20% glycolic gel. I have some pure 10% glycolic and add it to the product at 5% of the total product. So would this be a finished 10% or a 5%?. Since I can only find to purchase 10% strength. How can I make a professional 20%. Would having it as 20% of the total formula or is that way too much? Help! Also do I need a ph meter and can you recommend one as it needs to be between 2 and 3 pH.

    Thanks!

    Bobzchemist replied 10 years, 2 months ago 2 Members · 2 Replies
  • 2 Replies
  • DavidW

    Member
    April 29, 2014 at 7:48 pm

    Why are you doing this?  Are you selling this?  What is your background?

    If you have 10% glycolic acid the strongest you can have is 10%.  Can’t get get any stronger than what you start with.  IF you add 10% acid to a 5% finished product you will end up somewhere in between depending on how much you add.

  • Bobzchemist

    Member
    April 29, 2014 at 8:03 pm

    If you are not equipped to handle the math involved in calculating this, you should not be trying to make a professional strength anything, let alone a glycolic acid product. 

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