Q&A quickie: When adding a preservative to a lotion master batch, do I add enough preservative to include the FO/EO?

In this post – Back to basics: Making your first lotion! – Leona asked, When adding preservative to a lotion master batch, do I add enough preservative to include the FO/EO? When figuring out how much preservative to use, we want to take into account all the ingredients in the formula. This means the water, aloe...

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Q&A: How do companies use niacinamide and glycolic acid in the same product?

In the September Q&A, Charlette asked this epic question: Hello Susan! Can you clear up a little dilemma? I have read that Niacinamide is NOT effective in formulas unless the pH is around 6. I also have read that Glycolic Acid is absolutely useless in formulas if the pH is over 4. Here’s my confusion:...

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Q&A quickies: Conditioner thinning out as it cools? Using powdered surfactants in liquid products? Pressed vs heated shampoo bars?

In the September Q&A, Jenny asked: Hi Susan!! I have a question that I hope you can help me with. I have formulated a hair conditioner that I love with adaptations from your formula but when I make it sometimes (most times and even with precise measurements) after heating and holding and combining the ingredients together...

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Q&A: What is saccharomyces? Why is it in products?

In the August Q&A, Brian asked: It’s the saccharomyces ingredient that seems new or unusual in both these products. Maybe a yeast of some kind. Rare? How to preserve? Effective for what? Brian referenced these two products, which will lead into another question about what it means for something to be an “essence”. Fresh, Black Tea Kombucha...

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#alltheingredients: Betaine! Are all these ingredients called “betaine” the same thing?

In the August Q&A post, Amy asked: Hope this isn’t the wrong place to ask, but is Vegemoist (Glycine Betaine- Sugar Beet Extract) the same as TMG or Betaine Anhydrous (dietary supplement)? If so, can I use the powdered supplements for skincare with similar results? The Q&A is the perfect place to ask questions as...

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