Q&A: Is allantoin amphoteric? What’s an isoelectric point? Can we use it in anionic products?

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Let’s continue with Mia Makes Things’ questions about using Germaben II in products and her third question about allantoin: The closest thing I’ve found is Sepimax ZEN, a gel former, which is anionic. And even then, as an anionic ingredient it prohibits the use of the cationic (at typical pH) allantoin. Which pretty much defeats my...

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Further adventures in cosmetic chemistry: What’s up coming next! 

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As I was writing up another variation of the Saje Psoria Ease Healing Treatment Lotion about incorporating rheology modifiers into our lotions – things like xanthan gum or gelling agents – I realized I needed to stop so I can finish the series I was sharing about some of the cosmetic chemistry terms I was...

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Q&A: Are there any non-non-ionic emulsifiers? How to use parabens in non-ionic products?

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In the December Q&A, Mia Makes Things noticed, Something I just noticed… So non-ionic solubillizers and emulsifiers can deactivate paraben-based preservatives… but I have yet to come across a solubilizer or emulsifier (O/W or W/O) that is *not* non-ionic. So how do people manage to use paraben-based preservatives, like Germaben II or Phenonip, in any product?...

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Q&A quickie: Why do my conditioner bars look like this?

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In this post on conditioner bars – Weekend Wonderings: All about conditioner bars – Cassandra asked, I’ve been making these conditioner bars and sometimes they do this. Why? They cooled too slowly and were probably on a surface that was bumped a little, even something as simple as writing something down and jiggling the table...

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Potential duplication of Saje Psoria Ease Healing Treatment Lotion (part four)

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A small Malibu bottle with a yellow lotion inside. There's a label with my SwiftCraftyMonkey logo on it.

Thanks for joining me for part four of this potential duplication. On Saturday, we took a look at the first part of the ingredient list, and we looked at the rest of the ingredient list on Sunday. We figured out and made a prototype formula yesterday, so let’s take a moment today to gather some...

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