• Formulating

  About TEWL of petrolatum

  Posted by Abdullah on February 18, 2021 at 4:51 am

  %5 petrolatum prevents %98 TEWL.
  Does it mean %2.5 would be able to prevent %49 TEWL?

  Abdullah replied 3 years, 9 months ago 2 Members · 2 Replies

  • petrolatum
  • tewl
• 2 Replies

• 

  OldPerry

  Member

  February 18, 2021 at 5:20 pm

  You would have to test it. I don’t think it is a linear scale.

  In case you were curious, here’s a study where you can see how much TEWL petrolatum affects skin. I’m not sure about the percentage they used though. 
  https://onlinelibrary.wiley.com/doi/full/10.1111/jocd.13163?casa_token=8tk7uwgXaPAAAAAA%3Amx8wnGE2NLHtJXc0ifT5_8tgzpyyl7A5d4SXvNv-la-DSxzelJlzCPH09paGgF8OD3MOjrjRVjCaMzw

• 

  Abdullah

  Member

  February 19, 2021 at 2:45 am

  @Perry thanks

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