Home Cosmetic Science Talk Formulating Advanced Questions Citric acid solution

  • Citric acid solution

    Posted by Alana on April 10, 2019 at 4:18 am

    Hi everyone, i usually made anhydrous product for myself but now i’m trying to make lotion, have all the ingredients and tools but still don’t know how to store the citric acid solution. Is it okay if i use pipet glass bottle? And if i make 50% solution do i need to add preservative? Thank you

    microformulation replied 4 years, 11 months ago 3 Members · 3 Replies
  • 3 Replies
  • ngarayeva001

    Member
    April 10, 2019 at 8:50 am

    50% citric acid solution would have a pH around 1. you don’t need to preserve it. Just fill a little bit more than a half of a dropper bottle with citric acid powder, top up with deionised water, shake and you are good to go.

  • Alana

    Member
    April 11, 2019 at 2:30 am

    Thank you so much!

  • microformulation

    Member
    April 12, 2019 at 2:54 pm

    I would weigh the Citric acid of course. It is 50% wt/wt.

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