Rheology modifiers

Q&A: Can you use hydrolyzed proteins with xanthan gum in gelled facial cleansers? Part one, what’s a gelled facial cleanser (with formulas)

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A bottle with a purple gel in it sits on a patio. There's grey carpet, but it's covered in some moss.

In the monthly Q&A, Samantha asked, I’m trying to learn more about gel facial cleansers thickened with more “natural” ingredients. I can’t seem to find the answer to this question after searching your blog. Should I not use hydrolyzed proteins in products thickened with xanthan gum? I’m learning to only use quaternized proteins in cationics, but...

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Q&A: Why does my gel facial cleanser smell like chemicals or gasoline?

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In the monthly Q&A, Samantha asked this question…Hello Susan! I have been having some issues with my gel facial cleanser that I am hoping you can help me out with. After about 3 weeks the product fades to a chemical/gasoline type smell. I am wondering if there are any interactions that you know of in...

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Q&A: What do “fish eyes” look like when we use rheology modifiers?

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In the monthly Q&A, Chavi asked, You also use the term “fish eyes when using rheology modifiers. Could you provide a photo so I know what to look for? Thanks! “”Fish eyes” are agglomerates of partially hydrated powders characterized by a tough outer layer which prevents the complete wetting of particles within the interior.” (Reference) Basically, they’re...

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Q&A: How can we best thicken low pH face cleansers or body washes/shower gels?

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In the monthly Q&A post, Allison asked, Hello there! I hope the start of fall where you are at is lovely! I have a question about thickening low-pH face and body washes. I have a heck of a time thickening anything with a pH less than 5. Crothix is usually a winner for me but...

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Q&A: Can a lotion made with Sepimax ZEN be super light but also super tacky and sticky on the palms of your hands? 

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A jar of body butter. The body butter is an emulsion that’s peach coloured. The jar is black with a black lid. The jar sits on a black background.

In the monthly Q&A post, Shelby asked, Hi Susan! Can a lotion made with Sepimax Zen be super light on the body but SUPER tacky and sticky on the palms of your hands? I made two body yogurts the other day and loved the way they felt on my body. They were super light and just...

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