Home Cosmetic Science Talk Formulating Advanced Questions OTC Actives Testing for Sunscreen

  • OTC Actives Testing for Sunscreen

    Posted by CW6724 on May 11, 2016 at 7:32 pm

    I am working with a CM to manufacture a sunscreen product. We have already completed the FDA required UVB testing, resulting in an SPF 37, so we can claim SPF 35. The CM is validating a method for us to measure the active levels and is asking for a spec range for each active. Is there an industry standard used in this instance? I looked through the FDA’s website and could only find very vague answers. I know industry standard for batching is within 1% but does it need to be tighter for OTC actives since they are called out on pack?

    Any advice would be much appreciated!

    Mike_M replied 7 years, 12 months ago 3 Members · 4 Replies
  • 4 Replies
  • Bobzchemist

    Member
    May 11, 2016 at 9:07 pm

    OTC Sunscreen actives are always +/- 10% of the Active amount. The assays aren’t that accurate, so you need every bit of that room.

  • CW6724

    Member
    May 12, 2016 at 11:42 am

    Thank you so much!

  • Bobzchemist

    Member
    May 12, 2016 at 2:39 pm

    The requirements for the +/- 10% for sunscreen actives aren’t in the sunscreen monograph or anywhere on the FDA website if you look for sunscreen information.

    Where to find the regs for this, if you need them, is in the general requirements for all OTC drugs. A lot of people don’t realize that the general regulations also apply to sunscreens, because they’re not in the monograph - but they do.

  • Mike_M

    Member
    May 13, 2016 at 1:15 pm

    What bobz said. Take the regulations very, very seriously. The FDA considers sunscreen to be just as much a drug as aspirin or cold medication. And if they coming poking around they DO NOT take kindly to the sentiment “Well it’s not a real drug”

Log in to reply.