• Formulating

  Oil testing

  Posted by cossci21 on November 13, 2017 at 4:35 am

  Hi
  I have a question from a client about what tests they can perform on their facial oil. It consists of all natural oils.

  Is there any tests that would be good to perform on this oil for marketing claims, stability, rancidity etc? They are after actual chemical tests which I think would be expensive but if anyone has any ideas for tests please let me know.

  Thanks

  cossci21 replied 7 years, 5 months ago 2 Members · 2 Replies
• 2 Replies

• 

  Bill_Toge

  Professional Chemist / Formulator

  November 13, 2017 at 8:29 pm

  the Wijs iodine test (DIN 53241-1:1995-05) will give you the degree of unsaturation, which can be used to determine oxidative stability over time

  the peroxide value (determined by titration with iodide in acidic conditions) will give you an idea of rancidity - the lower the value, the better

• 

  cossci21

  Member

  November 13, 2017 at 9:50 pm

  Thanks very much Bill! 

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