Shampoo: Things you’ll find other than surfactants!

In general, a shampoo contains surfactants, water, preservative, and thickener. Each one is a pretty obvious inclusion – the surfactants clean, the water thins the mixture, the preservative preserves, and the thickener thickens. But a shampoo is about more than just cleaning your hair. We want something that is bubbly and foamy, something that makes…

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