formulating

Cetyl alcohol, cetearyl alcohol, and stearic acid are not emulsifiers! Let’s demonstrate this by looking at molecules and the HLB system

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A diagram showing the molecules for stearic acid, cetyl alcohol, and stearyl alcohol. These have an 18 carbon chain with an acid or alcohol group on the end. Please read the post for more information.

I’ve been asked quite a few times in over the last year or two if Cetyl Alcohol, Cetearyl Alcohol, and stearic acid are emulsifiers, and the answer is no, they’re structuring agents, oil soluble ingredients that have a required HLB. They are not emulsifiers. They aren’t surfactants. They can’t bring oil and water together to...

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Quick question: What does MB mean on an ingredient?

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You can find a longer post on this topic here – The Roundtable on Sustainable Palm Oil (RSPO) certification, and the designation MB (Mass Balance)! What does it mean when you see MB on an ingredient, like Montanov™ 68 MB? It means the company has obtained Supply Chain Certification for the palm oil used in the...

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Creating products: Packaging and preservation (updated 2024)

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I’ve written a lot about packaging in the past, but I’d like to share with you a great study on the impact of packaging on preservation of our products – Type of Closure Prevents Microbial Contamination of Cosmetics during Consumer Use Before we start… I’ve written two e-books on preservatives… The big book of preservatives,...

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Buying “previously owned” ingredients from destashing groups or Facebook Marketplace: Some things to seriously consider including information on good manufacturing processes (GMP) and certifications

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I’m all about trying to conserve, being less wasteful, passing on ingredients if I can’t use them or won’t have time, and sharing where I can, but we need to talk about using previously owned ingredients you’ve purchased from someone you might not know on destashing groups on Facebook or on Marketplace or other online...

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Q&A: Can I make up batches of product and scent it later? How do I do that? And a disclaimer on how much fragrance oil to use in a formula!

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Original post from November 16, 2010… An e-mail question came in asking this question…Can I make up batches of lotion and scent them later? What about things like body wash? The answer to this is simple. Yes. I’ll make up a large batch of lotion with all the ingredients, except the fragrance oils, and store...

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