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Which one stronger? Phenoxyethanol+glyceryl Caprylate or sorbitan Caprylate?
Yeah they will not be very strong but in shampoo at pH 5 ot lotion at pH 4 which one of these preservatives don’t be stronger?
Phenoxyethanol+sorbitan Caprylate 7/3 at 1%
Phenoxyethanol+glyceryl Caprylate 7/3 at 1% -
6 Replies
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Both are wrong.
Where effective Phenoxyethanol is usually fine at 5000 ppm and the other two are pretty useless in any application. Pseudomonads have plenty of esterases. -
@PhilGeis there is a blend Nipaguard SCP by Clariant phenoxyethanol/sorbitan Caprylate 7/3. I wanted how will it performs if we use glyceryl Caprylate instead of sorbitan Caprylate in this blend.
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Don’t waste your money on either - supplier marketing hype. Efficacy would be phenoxyethanol.
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@PhilGeis I will not purchase them but i have some glyceryl Caprylate in stock and wanted use it in combination with phenoxyethanol in shampoo pH 5 or lotion pH 4 with 0.2% EDTA in both if possible.
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PhilGeis said:…Pseudomonads have plenty of esterases.This would result in free caprylic acid and, at least in vitro, caprylic acid shows some antimicrobial efficacy and reduces biofilm formation. 🙂
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Doubt it pharma - lauric might but the longer chain fatty acids do not and would more likely undergo beta oxidation as substrate for the pseudomonads.
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