Preservatives

#alltheingredients: Sodium phytate (chelating ingredient)

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Jen from Lotioncrafter was kind enough to send me some sodium phytate to play with over the summer.  Sodium phytate is a water soluble chelating ingredient we can add to our products at 0.05% to 0.5% to bind with metal ions to keep the ingredients from reacting with them. These metal ions can precipitate in...

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#alltheingredients: Euxyl K 903 (INCI: Benzyl alcohol (and) benzoic acid (and) dehydroacetic acid) preservative

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As we meet the preservatives in the Euxyl series, this PDF might come in handy… Euxyl K903 (INCI: Benzyl alcohol (and) benzoic acid (and) dehydroacetic acid) is a broad spectrum preservative that can be used in products that contain water, such as surfactant blends and emulsions. It’s considered naturally compliant. Benzyl alcohol is a polar molecule...

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#alltheingredients: Euxyl K 900 (INCI: Benzyl Alcohol (and) Ethylhexylglycerin) preservative

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Euxyl K 900 (INCI: Benzyl Alcohol (and) Ethylhexylglycerin) is considered by the company to be a strong broad spectrum preservative. “euxyl® K 900 is a liquid cosmetic preservative based on benzyl alcohol and ethylhexylglycerin. The addition of ethylhexylglycerin affects the interfacial tension at the cell membrane of micro-organisms, improving the preservative activity of benzyl alcohol....

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Things we find in preservatives: Ethylhexylglycerin

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You might see this ingredient in preservatives like Euxyl® K900 and Euxyl® PE 9010, so what’s it all about then? Ethylhexylglycerin is an alkyl glycerol ether we can use to boost the preserving power of ingredients like phenoxyethanol, methylparaben, and methylisothiazolinone, and works as an effective deodorant, inhibiting the growth of bacteria that might cause body odour....

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Q&A: Which preservative works best with alkaline liquid soap? Let’s talk about the chemistry of soap, pH, and preservatives!

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In the June Q&A, smc asked, Preservatives for liquid soap. I’m playing with liquid soap make, and due to the high percentage of water I’ll need a preservative. What preservatives work well in a high pH environment and doesn’t have a horrible scent? Thanks.  As a quick note before we start, I have pages where...

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