Update on what I’m writing at the moment…

I thought I should share an update with you on where I am in my monthly cycle of posting. I’m doing okay physically – I’m still in a lot of pain every day with muscle spasms, but the ones in my hip flexor, piriformis, and glut med muscles have quieted down to a dull roar,...

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Q&A: If anyone has tried salicylic acid in a shampoo how much did you use and do you think it made your product better?

In the August Q&A, Allison asked: I’ve noticed that salicylic acid is an ingredient in some anti-dandruff shampoos (I’m guessing because it helps with flakiness) but it’s also used in a color-protection shampoo that I like. I’m wondering if you know what benefit it might have in hair care other than as a dandruff treatment? I’d...

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Weekend Wonderings: Can I combine cationic ingredients with non-ionic or anionic surfactants?

I’m doing my best to respond to your comments, but considering the other day I made it through three comments before spending a morning researching and writing yesterday’s post on cetrimonium chloride, it’s not as simple as writing a few lines and being done if I want to offer you the most information I can....

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What’s the suggested usage rate for cetrimonium chloride in leave on products?

I get this question all the time, so I thought I should write a post that’ll come up in searches for future reference… Cetrimonium chloride is a positively charged or cationic ingredient that acts as a good detangler by reducing combing forces, which reduces friction on our hair. We can use it as the main...

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Chemistry: Rheology modifiers – Introduction and defining some terms: Yield stress and shear

On September 7th, we started this series off by looking at why xanthan gum might pill or ball on your skin when used in lotions. Then we started this series, for which I’ve also created a glossary of terms as we’ll be using them a lot in the future… Defining some scientific terms: Solubility, viscosity,...

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