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Shampoo gets Colored after adding fragrance
Hello Everyone,
I am new to formulation. Need your help regarding my shampoo when i add coconut fragrance(fragrance color is Brownish Red) only at 0.2%, it colors changes to pink after 24-48 hours. Also when i add more upto 0.25%, it lowers the viscosity of the shampoo. How to counter this color changing property.
My formula contains
1. SLES 9%
2. Methyl Paraben Sodium 0.2%
3. Propyl Paraben Sodium 0.1%
4. Sodium lauroyl sarcosinate 3%
5. PQ-7 2.5%
6. CDEA 3.5% (premixed with fragrance 0.2%, Almond Oil 0.2% and Vitamin E 0.5%)
7. D-Panthenol 0.5%
8. PEG-150 Pentaerythrityl Tetrastearate 1.5%
9. Glycerin 3%
10. BrB 1018 1.5%
11. Phenoxyethanol 0.8%
12. Hydrolyzed Wheat Protein 0.5%
13. CAPB 10%
14. Pearliser liquid 3% (even tried 5%, same results)
15. Citric acid 0.16% (to achieve ph at 6)
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This discussion was modified 8 months, 3 weeks ago by
salman_hiksal.
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This discussion was modified 8 months, 3 weeks ago by salman_hiksal.
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This discussion was modified 8 months, 3 weeks ago by
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2 Replies
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This is happening due to cationization effect which may arise due to PQ7. Try reducing your preservatives % as well. Either go with PP & MP together or Phenoxyethanol alone.
By the way how do you dissolve PEG 150 and how much time does it take to completely homogenize?
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Does your fragrance smell a bit like vanila? There might be an oxidation going on. You could add an antioxidant (BHT or Tinogard TL).
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