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Surfactant turning pink problem
Hi, I really need your guys advise. I’m making common body wash without colorant. At first it turns out good (transparant white, and pearly white when added with glycol distearate). However 3-4 days later, it turned so pink that it the color changed is easily noticeable.
I had asked my lecturer and she only gave me 2 reason:
- Sodium Hydroxymethylglycinate can turned emulsion/surfactant pink -> I did not use this at all.- Too acidic may turned emulsion/surfactant pink. -> I supposed my pH should be fine. I did not adjust because the final pH goes around 6.I really had no clue at all. Is this mould? I used RO water which mean the water is clean and should not be a problem. Its quite hot here in Indonesia, but I put it in nice indoor without direct sunlight.
My formula is:
To 100 Water 0.2 Glycerin 0.2 Disodium
EDTA14.2 Sodium Lauryl
Ether Sulfate (70%) = 10% active10 Cocamidopropyl
Betaine (30%) = 3% active2.0 Decyl glucoside 2.0 Lauryl Glucoside 1.0 PEG-40
Hydrogenated Castor Oil0.6 PEG-7 Glyceryl
Cocoate0.6 Glycol Distearate 0.6 Dipropylene
glycol2.0 Fragrance oil 0.6 DMDM Hydantoin 0.3 Potassium Sorbate Thank you and would really appreciate if someone can help me with this issue.
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