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Availability of surfactant having alkaline nature
Any surfactant is available having alkaline in nature? Please suggest. Final application would be rinse off hair care product.
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10 Replies
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Do you refer to stability? Finctionality?
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We saponified coconut oil for our shampoo, and the pH was around 9. This provided both stability and functionality. At pH 9.0 we had zero microbial issues.
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Is it better to saponify an oil or specific fatty acids for functionality and price?
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Surfactant solutions at pH 9-11 are susceptible to microbial contamination.
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Not in our experience.
We manufactured these products for two decades and exported them globally to various brands under our Private Label activities. Zero contamination was detected in the testing done by these global brands and their associated labs, and samples tested my cosmetic compliance authorities.
Our production facility included an on-site microbial lab. And in two decades, there was zero microbial contamination detected in retained samples tested for up to two years after manufacture and beyond.
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Do you mean basic? In theory all anionic surfactants that start with sodium or potassium are basic salts. I think you should focus more on the stability and performance of the surfactant at your working pH.
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Mike - your experience does not limit microbial contaminaton and some of the bugs that contaminate are not readily detected and products not accurate evaluated by routine methods. From liquid laundry (Halomonas and Pseudomonas aeuginosa) to liquid cleaners (Pseudomonas aeruginosa) to soap (Nesterenkonia) - recalls and publications document susceptibility of higb pH products..
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and all thse products were released based on in spec micro content testing
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That well may be the case. But after two decades of no microbial issues being detected by our in-house microbial testing and the testing done by our international Private Label customers and cosmetics authorities in their respective countries, I’m comfortable.
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It indeed is and as we’ve discussed, one of the bugs that characteristically contaminates soap is not readily detected by media used in conventional testing. Consumer contamination is another matter for which I understand few have the understanding and resources to address this aspect. of product risk
The larger issue is this - alkaline pH short of 11+ is not a barrier to contamination.
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