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Formulation
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
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4 Replies
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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.
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Why not include a preservative?
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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
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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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