• Formulating

  Ethyl ascorbic acid

  Posted by Shams on May 26, 2020 at 4:36 am

  Hi brilliant chemists.

  I am formulating a vit c serum, using ethyl ascorbic acid. I have made some trials but i am experiencing 2 problems: irritation and eczema from some of our team members who are trying it and discoloration over time:
  The formula is as below:
  Ethyl ascorbic 19%
  Ferulic acid 0.1%
  Mandelic acid 0.9%
  In a water vehicle + glycerin , aloe and some other emollients
  pH of the final formula ranging between 5.6-5.8

  Any suggestions what do i need to try to change or add.
  Thanks in advance

  alan123 replied 3 years, 11 months ago 2 Members · 1 Reply
• 1 Reply

• 

  alan123

  Member

  May 26, 2020 at 5:47 am

  Replace it with Sodium Ascorbyl Phosphate ? Why do you have Mandelic Acid there?

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