Various & sundry things: Moisturizing for baldy heads, link to article, and the freezing point of urine

I am so bored lying here on the couch on my heating pad as my back pain continues. I went for an epidural on Saturday and have a second scheduled for this upcoming Saturday, but it’s still too painful to stand for more than a few minutes or sit for a while. I have another … Read more

Member exclusive Q&A: How to thicken oils that won’t be greasy? Fatty alcohols, fatty acids, liquid esters, and solid esters, plus a formula for a whipped not-butter

On February 11, we took a look at ways to thicken oils that won’t be greasy. Today, let’s look at a few other ways to thicken oils! A few years ago – holy cow, was that in 2010? – I did some experiments thickening oils with cetyl alcohol, stearic acid, cetearyl alcohol, and complicated with...

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Separation in surfactant based products, like shampoo or body wash? Let’s troubleshoot it!

I’ve also been receiving so many questions about surfactant based products, like shampoo, body wash, facial cleanser, and bubble bath, separating, and I don’t think I know what you mean by that term “separate”. I’ve only once had something that appeared to be separation in a body wash, and that was one that had glycol … Read more

Using powdered surfactants like SCI or SLSa in liquid products

I’ve been receiving quite a number of questions over the last few months about adding solid surfactants like sodium cocoyl isethionate (SCI) and sodium lauryl sulfoacetate (SLSa) to liquid products, like bubble baths or body washes. The short answer is that you can’t incorporate these powders well into liquid products as they will either re-solidify … Read more

Member exclusive Q&A: How to thicken oils that won’t be greasy? Beeswax, cera bellina, and Lipidthix

In the February Q&A, Sharon asked: Can you give some helpful hints on thickening an oil that is not greasy and would not need an emulsifier? I am look for an anhydrous answer. I have tried shea butter but it is too greasy. Shea butter by its very nature is a greasy ingredient, so anything...

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