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Is Euxyl K703 a robust preservative system?
Euxyl® K 703 contains:- Phenoxyethanol 78.0 - 84.0%
- Benzoic Acid 11.0 - 13.0%
- Dehydroacetic Acid 6.5 - 7.5%
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9 Replies
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Yes - at the right pH and with EDTA or a good chelator
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PhilGeis said:Yes - at the right pH and with EDTA or a good chelator
Is a chelator usually needed, even in simple formulas (like a solution of water, glycerin, propanediol, sodium lactate)?
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It’s the single best preservative booster.
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I usually use chelator everywhere (except obvious formulas such as cationic system, W/O … ).
First of all, I have it on hand (plenty of it and such a small amount is used), it’s cheap and it helps preservative and antioxidant.
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@Paprik you can use caprylhydroxamic acid with cationics if you want.
By the way, what not use chelating agent with w/o?
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We have had success with Euxyl K701 (Phenoxyethanol (and) Benzoic Acid (and) Dehydroacetic Acid (and) Ethylhexylglycerin) which is similar. We use a chelator (GLDA) and keep the pH at around 5.5. -
Caprylhydroxamic acid is not that good as a chelator in preservative context.
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Don;t see much benefit with DHA when you’ve Benzoate, esp. in a surfactant context.
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PhilGeis said:Caprylhydroxamic acid is not that good as a chelator in preservative context.
Yeah but if if he want at least some chelating agent in cationic system this is the way ????
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