• Formulating

  Colour Fading in Face Wash

  Posted by vjay on April 24, 2014 at 8:04 am

  I have sulfate free face wash in that I added ponceau 4R colour but at 45°C after 1 months its turn light orange from light pink.

  
  

  My formulation ingredients are as mentioned below.

  
  

  DEMINERALISED WATER

  DISODIUM EDTA

  GLYCERIN & WATER & GLYCRRHIZA GLABRA ROOT EXTRACT

  ACRYLATES COPOLYMER

  SODIUM HYDROXIDE

  GLYCERIN

  ETHYLENE GLYCOL DI STEARATE

  COCAMIDOPROPYL BETAIN

  DECYL GLUCOSIDE

  COCO GLUCOSIDE

  COCO-GLUCOSIDE (AND) GLYCERYL OLEATE

  PHENOXYETHANOL & METHYLISOTHIZOLINONE

  PHENOXYETHANOL

  TOCOPHERYL ACETATE

  NIACINAMIDE

  PANTHANOL

  CITRIC ACID 

  PERFUME

  vjay replied 10 years, 6 months ago 3 Members · 6 Replies
• 6 Replies

• 

  vjay

  Member

  April 24, 2014 at 8:05 am

  Can anybody told me that what could be the reason

• 

  Bobzchemist

  Member

  April 24, 2014 at 9:20 am

  “Ponceau 4R (also known as C.I. 16255) is a red azo dye which can be used in a variety of food products, and is usually synthesized from aromatic hydrocarbons from petroleum.

  Ponceau 4R is considered carcinogenic in some countries, including the US, Norway, and Finland, and it is currently listed as a banned substance by the US Food and Drug Administration (FDA).”

  
  

  @vjay, I have no experience with this material, and I strongly suspect no one else here does either.

  
  

  Most frequently, colors are degraded by the fragrance, so changing or eliminating the fragrance may work.

  
  

  Better yet, run a series of knock-out experiments to determine the culprit(s).
• 

  Chemist77

  Member

  April 24, 2014 at 12:25 pm

  Thumb rule, colors drift towards yellow. At higher temperatures this phenomenon kind of accelerates so its always better to add a color stabilizer to prevent or slow down this drift. At times fragrances too can be the reason so I suppose you try both but have a look at what Bobz mentioned about the carcinogenicity, quite noteworthy.

• 

  vjay

  Member

  April 25, 2014 at 3:28 am

  ok

  Can I will try with iron oxide and anybody can help which colour stabilizer I have to use.

• 

  Bobzchemist

  Member

  April 25, 2014 at 9:58 am

  Iron oxide colors won’t drift - but you will need to make sure that your formula has a high enough yield value to support/suspend the pigment particles.

  A dye would probably be a better choice - can you get any Red 40?
• 

  vjay

  Member

  May 16, 2014 at 7:28 am

  I have done so many trial and route cause analysis and based on that I came to know that perfume is a culprit.

  Thanks to all of you guys to give the ideas.

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