Home Cosmetic Science Talk Formulating General Number of hours your deo lasts (to write on the label)

  • Number of hours your deo lasts (to write on the label)

    Posted by Bluebird on June 7, 2023 at 5:25 am

    As an individual seller-that is, not a part of a medium or large company and thus is operating with a limited resources as of yet-

    how do you determine how long your deo works (ex, 24h, 48h, 72h), the number of hours you can write on the label if you want to start selling?

    Do you have to do a formal, controlled trial with recruited people?

    Or is it OK if you just know the rough number based on your sample testing on friends and family if the number of these people is sufficiently large and the effect sufficiently clear to let you know that it is the best guess?

    • This discussion was modified 11 months, 3 weeks ago by  Bluebird.
    Bluebird replied 11 months, 3 weeks ago 4 Members · 6 Replies
  • 6 Replies
  • fareloz

    Member
    June 7, 2023 at 5:42 am

    Usually they say UP TO 24h, which means any value but not longer than 24. If you put up to 100000 hours it is still valid, no matter how long it lasts.

    Another option is 24 hors *, where the star is “instrumental test” on the back of the label, but what kind of test - not sure. I guess it doesn’t really matter and can be any stupid test

    • Bluebird

      Member
      June 7, 2023 at 6:42 am

      Brilliant.

  • PhilGeis

    Member
    June 7, 2023 at 5:47 am
    • Bluebird

      Member
      June 7, 2023 at 7:02 am

      Thank you for sharing.

  • gordof

    Member
    June 7, 2023 at 6:51 am

    well in Europe at least you need to make a test like it is described in Phil’s link. You cannot just claim up to 24h you need to have a test if you want to write any number on it that shows that a trained pennel does not sniff out any sweat smell on a Test pennel over the time you want to mention on your deodorant.

    OFcours you can get through as long as your safety assessor does not want to see the test but normally they will kill the claim if it is not somehow tested.

    • Bluebird

      Member
      June 7, 2023 at 7:01 am

      That is good to know. Thank you

Log in to reply.