Chemistry

Members’ exclusive: Liposomes – introduction to liposomes and other concepts.

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In the January Q&A, Derek asked: I am eagerly waiting for the cosmeceuticals e-book. A few days ago while browsing different ingredients for cosmetics, I saw ceramide liposomes and retinol liposomes. It says that they absorb more in the skin if liposomes are used. However, I can’t find any resource on the use and formulation...

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What’s the difference between these Vitamin Es?

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In the February Q&A for Patreon, Tash asked: There’s different kinds of vitamin E I see. Natural, synthetic and mixed. Is there any difference between using these in formulations? I wrote a few months ago, and never hit “publish”, which actually turned out to the be a good thing as I have more information I wanted...

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Viscosity!

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In these posts on surfactants I’ve been writing recently, I’ve mentioned viscosity quite a lot, so I thought we should take a look at this concept. The easy way to think about viscosity is about the thickness of a fluid. Water has low viscosity while something like glycerin has a higher viscosity. I liked this...

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Question: How can we add a cationic polymer to an anionic product, like shampoo, body wash, or facial cleansers?

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I can’t remember who asked it where, but someone asked me: How can we add a positively charged or cationic ingredient like polyquaternium 7 or Honeyquat to a negatively charged or anionic surfactant blend, like a shampoo or body wash? Great question! Let’s recap a bit of the chemistry for a second. (Check out this...

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