Ingredient: Solubilizers – a comparison (updated)

I spent last week testing PEG-40 hydrogenated castor oil, and I thought I’d share my initial thoughts and compare it to some of the other solubilizers you might use. If you want to see what I’m referring to, click on one of these posts… Ingredient: PEG-40 hydrogenated castor oil My method for testing Part 1:…

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