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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Discussion: Do you know where to find lotion dispensing equipment for a variety of emulsions?

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In the monthly Q&A, Tami asked, Do you know where I can find decent lotion dispensing equipment for various viscosities of emulsion, ranging from thin to cream? The one I have now is just about to be dropped kicked off the side of the bluff. Looking for something that allows a precise dialing in of quantity...

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Tips & techniques: Why it’s ill advised to use Aloe Vera Gel in emulsions!

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I see questions about how to use Aloe Vera Gel in emulsions in every space online in which we discuss lotions, and I thought this topic needed its own post, so let’s take a moment to learn more about Aloe Vera, Aloe Vera Gel, and why I don’t suggest using the latter in emulsions. What...

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Q&A: What’s the purpose of alcohol ethyoxylate and potassium hydroxide in a liquid detergent formula?

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In the monthly Q&A, Matt asked a question I completely missed. (I’m sorry, Matt!) Hi Susan, looking to reformulate this liquid laundry detergent recipe and had a couple questions about the ingredient lists. Here is the list: Fragrance (Parfum), Soft Water, Coco-Glucoside, Alcohol Ethoxylate, Coco-Betaine, Glycerin, Sodium Chloride, Xanthan Gum, Potassium Hydroxide, Preservative. What is the purpose...

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Categories Q&A

Scales! An Equipment review: Let’s meet a few scales that weigh 0.01 gram/0.001 ounces (part three of the series)

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We started this series with the introduction or part one in which we reviewed the parts of the scale and things we might want to consider when we buy one with some information on significant figures and instrument error. In part two, we looked at few scales I’ve owned over the years that measure to 1...

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