Designing your product as a line: Shampoo – what’s in it? Other ingredients

Yesterday we took a look at how to formulate a shampoo. Today, we’ll take a look at the other ingredients you might add to a shampoo to take it from good to great.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,…

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