Home Cosmetic Science Talk Formulating General stability test

  • stability test

    Posted by goldie on July 27, 2017 at 5:30 pm

    hello fellas
    i just receive a few quotes from different labs to do a stability test to a final product .they offer ,everyone of them , few stability tests that costs different from each other and spread on different time line {im short in time} which one should i choose?the product itself its a  fragrance body lotion line that can be applied  after bath and on dry skin the container itself is 4oz pp white bottle .are there any other test u recommend me to doadd?thank you very much in advance
    Goldie

    DRBOB@VERDIENT.BIZ replied 7 years, 5 months ago 2 Members · 5 Replies
  • 5 Replies
  • DRBOB@VERDIENT.BIZ

    Member
    July 27, 2017 at 8:58 pm

    are there any other test u recommend me to doadd?thank you very much in advance-What tests have you completed?

  • goldie

    Member
    July 28, 2017 at 5:35 pm

    hi dr bob i got from the factory :certificate of analysis containing:colorodorappearanceph i want to do microbial and stability its written here  microbiology:<1,000 cfug or ml-not requested meaning they didnt do it 

  • DRBOB@VERDIENT.BIZ

    Member
    July 28, 2017 at 9:07 pm

    NO  Looks like they did not: ask why they didn’t do preservation USP 51 as needed by your company prior to marketing.Also they should do viscosity.Are temperature and Time listed on certificate?

  • goldie

    Member
    July 28, 2017 at 10:14 pm

    they recommend to do a stability test through a 3rd party on the final product{i get it as a bulk}no viscosity and no temperature or time just date and sign i approach them saying something dont look right to me there is lack of information i also sent some files showing what u get in terms of info from another manufacture for them to understand what dosnt look good in my eyes

  • DRBOB@VERDIENT.BIZ

    Member
    July 28, 2017 at 10:59 pm

    Good

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