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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