Home Cosmetic Science Talk Formulating General Why vaseline became yellow starting with white colour?

  • Perry44

    February 27, 2024 at 8:33 am

    Oxidation is the answer. Hydrocarbons in Vaseline chemically change by reacting with air, UV light, introduced contaminants. Heating can also speed up oxidation. To slow it down, keeping it stored in a cool dark place might help.

  • Fekher

    February 27, 2024 at 10:52 am

    Thanks a lot Perry, I thought that vasline is soo stable versus oxidation.

    So in bad condition of storage can just two months make vasline have oxidation ?

    Then can vitamine or can you propose uv filter to solve the problem?

  • ketchito

    February 28, 2024 at 7:13 am

    I agree with @Perry44 about the oxidation. Now, what could happen is that your vaseline wasn’t as refined as some others, and those traces could contain materials prone to oxidation.

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