• Hair

  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 week, 1 day ago 5 Members · 4 Replies
• 4 Replies

• 

  gordof

  Member

  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

  Professional Chemist / Formulator

  March 14, 2023 at 5:27 am

  Why not include a preservative?

• 

  fareloz

  Member

  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 week, 1 day ago by  fareloz.
• 

  PhilGeis

  Member

  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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