• Formulating

  Color degrades over time

  Posted by Melissa on August 16, 2021 at 3:05 pm

  I have an aloe-based skin product which contains German Blue Chamomile Essential Oil (Chamomilla Recutita (Matricaria) Flower Oil).  The high azulene content of this ingredient makes my product appear blue.  But over time, the blue color degrades to an unsightly greenish shade.  How can I keep this color change from happening?

  vitalys replied 3 years, 9 months ago 3 Members · 2 Replies
• 2 Replies

• 

  suswang8

  Member

  August 16, 2021 at 4:28 pm

  Please post full formula, otherwise I don’t think any experts will be able to help.

• 

  vitalys

  Member

  August 17, 2021 at 4:35 pm

  @Melissa This essential oil may contain several types of Azulenes, all of them are volatile compounds, which explains the color change of your product. 
  You may also try Guaiazulene from Symrise either 100% or water-soluble version - 25%, which is quite stable in terms of color changing. Glass or metal containers are also recommended for the products that contain Azulenes. 

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