Home Cosmetic Science Talk Formulating Hair Formulation

  • Formulation

    Posted by Gabor on March 11, 2023 at 1:22 pm

    Hi, I`d like to ask your view if my hair spray formulation needs a preservative?

    The Formulation is 50% of ethoxydiglycol and 50% water , the active is Diphenyl diselenide 0.03%w/v

    PhilGeis replied 1 year, 2 months ago 5 Members · 4 Replies
  • 4 Replies
  • gordof

    March 14, 2023 at 5:17 am

    you need to make a test I would say. you can either test water availability or just do a standard microbiological study. you will need that anyhow to get it through the authorities from my experience.

  • MarkBroussard

    March 14, 2023 at 5:27 am

    Why not include a preservative?

  • fareloz

    March 14, 2023 at 5:49 am

    Not sure where are you located, but note that Ethoxydiglycol is allowed only up to 2.6% in sprays in Europe https://echa.europa.eu/cosmetics-restricted-substances/-/legislationlist/substance/100.003.563

    • This reply was modified 1 year, 2 months ago by  fareloz.
  • PhilGeis

    March 14, 2023 at 9:47 am

    Hair spray? Can you please explain formulation. That much water and Ethoxydiglycol at rel low VP - wonder if it’ll ever dry, and ethoxydiglycol is an eye irritant. “Active” as Diphenyl diselenide - for hold or orange hair?

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