• Formulating

  Menthol crystals in carrier oils

  Posted by ozbiz44 on November 11, 2020 at 6:49 am

  Hello, and thanks for adding me to the site.

  I am formulating a mix, to put in a roll on bottle, to apply to temples for relaxtion. 
  Formula is: Menthol Crystals 50%  Eucalyptus oil 10%  Sweet Orange oil 10%
  Carrier oil  Coconut Fractionated Oil. 

  However using this oil has a limited shelf life.   Would isopropyl myristate work as the carrier?  Or other ideas would be appreciated.  Thank you.

  Herbnerd replied 4 years, 2 months ago 3 Members · 3 Replies
• 3 Replies

• 

  Benz3ne

  Member

  November 11, 2020 at 12:07 pm

  What is limiting your shelf life?
  If it is oxidising, include an antioxidant like Vit E (tocopherol/tocopheryl acetate) or if it’s spoiling due to bacteria, include a broad spectrum preservative.

• 

  ozbiz44

  Member

  November 11, 2020 at 10:14 pm

  Thank you

• 

  Herbnerd

  Member

  November 17, 2020 at 11:13 pm

  Simplest thing would be to dissolve the menthol crystals into the Eucalyptus and Orange oils first, once dissolved, you can mix into the fractionated coconut oil (I assume you are referring to MCT/Capric-caprylic acid?)

  Highly saturated oils tend not to go rancid; however, you could add some vitamin E or rosmarinic acid to it.

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