Yellowing of essential oil containing product

doxteradoxtera Member
edited September 22 in Formulating
Hi, I am formulating a clear transparent massage oil containing eucalyptus oil. After 2 years of storage the product turns into a shade of yellow. Some reading suggests oxidation/polymerisation of essential oil. Any suggestion what is the antioxidant that is suitable? Or could it some other problem that causes the colour change? 

Full formula:
Liquid paraffin
Menthol
Eucalyptus essential oil

Comments

  • @doxtera You could try with Tinogerd TT.
  • use an antioxidant such as VE --should drop right in
  • ozgirlozgirl Member, PCF student
    Are you storing it in an opaque bottle or amber bottle?
  • ketchito said:
    @doxtera You could try with Tinogerd TT.
    Thank you for your suggestion. I checked with local suppliers and it looks like they don't carry this. Unfortunately some ingredients are hard to find in where I live.

    use an antioxidant such as VE --should drop right in
    Thank you. I am considering between this and BHT since BHT costs much lesser. 

    ozgirl said:
    Are you storing it in an opaque bottle or amber bottle?
    I stored the oil in a transparent glass bottle. I also made an ointment with petrolatum base and kept in opaque plastic jar and eventually that turns yellow as well.
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