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Face wash formula failed. Please help
Guys, I really need your help with this. I have been making this face wash for quite a while. I recently changed it slightly by adding hydrolysed wheat protein. I have just found it like this:
Viscosity raised and there are some threads in it. No change of odour preserved properly. I don’t have any cationic ingredients in it either. pH when formulated was 5.2, tried to change it now but my pH meter is $%%%t. pH strips show it’s still around 5, so no drastic change of pH. Speaking about viscosity it was designed to be water-thin because it’s for foaming bottle.
Formula:INCI % Aqua 78.10% PEG-7 Glyceryl
Cocoate0.7% Cocamidopropyl
Hydroxysultaine8.0% Sodium Cocoyl
Glutamate4.0% Sodium Lauroyl
Methyl Isethionate5.0% Oat Amino
Acids2.0% PEG-50 Shea
Butter2.0% Diazolidinyl Urea (and) Iodopropynyl Butylcarbamate. Germall Powder
0.2% Citric Acid qs Thank you for your input in advance.
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5 Replies
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My first thought was that hydroxysultaine changes charge at acidic pH, but it never happened before. All surfactant products I have ever made contain some amphoteric surfactant and all of them are < pH 7…
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How long did it take before you noticed the threads? Are they threads or crystals? (do they break or stretch?)
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They stretch. It happened today, this bottle sits in my bathroom and I use it twice a day. It was ok in the morning. There were no significant changes of temperature.
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My guess would be mold.
“Molds consist of long, branching filaments of cells…”
https://www.cliffsnotes.com/study-guides/biology/microbiology/the-fungi/structure-and-physiology-of-fungiWhile you might have a suitable preservative system in there, that isn’t a guarantee of preservation. As they said in Jurassic Park - “Life finds a way”
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Thank you @Perry. I would be happy if it’s just mold. I was topping up this bottle many times instead of sterilising it properly. I have much lower standards when the product is for me rather than for someone else. I don’t sell any of my products but I make them for friends and family. This foam is particularly popular so I was worried. One of my friends has leftovers of that foam (same formula minus wheat protein) that I gave her 8 months ago. I also found the one with proteins made in July. All crystal clear. I am very careful with what I give to others. I make acid peels, retinol moisturizer, hydroquinone spot treatment for myself but won’t give it to anyone else. Same goes with water in oil products. Have been working on foundations for a while but they separate. So if it’s just mold and there’s nothing obviously wrong with the formula, it’s good. I need to invest in microbial plates for home use.
P.S. Jurassic Park was my favorite movie when I was a kid
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