pH

Q&A: Why is there white sediment at the bottom of my foaming face wash bottle?

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In the monthly Q&A, Chavi asked, Hi Susan! I made the attached formula for a foaming face wash. I needed to adjust pH and I did so using some citric acid solution. The next day, I noticed some white settling on the bottom; it disperses when shaken but then resettles. Any idea what it is or why this...

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Q&A: How would you modify a shampoo bar formula to be a “no more tears” product? Part five, testing and alter the final pH

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Welcome to part five of this series on how we might create a “no more tears” kind of shampoo bar using various anionic, non-ionic, and amphoteric surfactants. In part one, we reviewed the surfactants that Alexander noted she has in her workshop – sodium cocoyl isethionate (SCI), foaming apple surfactant, decyl glucoside, and Cocamidopropyl Betaine –...

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Q&A: How would you modify a shampoo bar formula to be a “no more tears” product? Part four, overview of testing pH and our formula!

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Welcome to part four of this series on how we might create a “no more tears” kind of shampoo bar using various anionic, non-ionic, and amphoteric surfactants. In part one, we reviewed the surfactants that Alexander noted she has in her workshop – sodium cocoyl isethionate (SCI), foaming apple surfactant, decyl glucoside, and Cocamidopropyl Betaine –...

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Q&A: Do we need to test and adjust the pH of our lotions?

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In our Zoom workshop last Sunday, we made the formula you can see in this week’s Newbie Tuesday post for hand & body lotion with Polawax, e-wax NF, Phytomulse, or Natragem EW. This will product a lotion with a pH between 5 to 6.5-ish, which is where we want it to be for our skin....

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Questions from the recent Zoom workshop on shampoo bars: pH, pH testing & pH meters

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Thanks for joining me today. In this post, we’ll be taking a look at the questions you had about the pH of the shampoo bars we made in the Zoom workshop on June 14th, 2020. I’ve been going through the chat you were having – which was awesome! – and trying to answer the questions...

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