PhilGeis
Forum Replies Created
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Should give your formula but prob. ok.
How good is your water? Can you add a chelator, EDTA? -
1% is excessive 9010 or Germall +. Suggest not much > 5000 ppm. And do add a chealtor - esp. EDTA.
Germall + is conceptually a better choice as it targets Gram +/- bacteria and fungi while 9010 targets primarily Gram neg bacteria. However, Gram neg bacteria are the most common contaminants for conditioner products. -
EDTA not enough.
The enzymes are microbial - not what’s in our bodies. The issue is inhalation in manufacturing and it is serious. -
This is mislabeled. As both a drug and cosmetic, inactive ingredients must be offered in descending order by content - not in alphabetical order.
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Not normal
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You need a preservative.
Suggest you not play with enzymes. The risk for immune response and anaphylaxis is real. Major companies test their plant workers frequently and will reassign those showing allergic response. -
It’s water soluble.
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As you said - chelator. Would add EDTA to those options.
pH might drive greater levels of benzoate in nonsurfactant products but think the max are too much. -
If yield - leaking heat exchanger
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304 is prob ok. Never plastic - impossible to effectively sanitize ongoing.
I’ve used low level hypochlorite injection for household product water. Would oxidize iron. No experience with formalin. -
shoot for 1000 ppm as acid
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None is cheap and an iron system is pretty poor for water storage or much else. Between biofilm and water and micro-based corrosion, think its not going to serve well.
EDTA would make it worse and ozone is out of the question.Stainless (316) will be more costly now but less in long term
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Think major cosmetic guys largely do their own contractor audits. Whoever you use, suggest your specific auditor should have major company background.
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and reduce the benzoate to ~3000 ppm
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Water is a primary source of contamination in cosmetic manufacturing. Stored, in whatever tank, vessel, bugs will grow and perpetuate themselves in biofilm. You’ll need some mechanism to control that problem and that typically involves a recirculating systems - the optimal systems is preserved with as constant heated water or ozone treated. Some use UV light and a micro filter recirculating through a storage tank with periodic sanitization of the system.
Hope you/ve stainless steel rather than PVC. -
Do not store water.
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5ppm with EDTA
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Agree re Germall + and add EDTA - you could also use Kathon/Na benzoate/EDTA
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Good luck then. Maybe be same wholesaler but different producers.
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Did you get a coa?
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Na benzoate is not enough. You could add chloromethylisothiazolinone as do many of the major marketers.
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Benzoate by itself is not a good preservative - esp. in a shampoo.
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Wonder at Na benzoate by itself as adequate preservative for a shampoo.
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Thanks!
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@ngarayeva001 - could you specify the class of preservatives?