Preservatives: Let’s talk about hurdle technology and “self-preservation”

Thanks for joining me for this aside on the idea of a product that contains water, like a lotion, can be “self-preserving”. There’s a post on Lush’s site – A beginners’ guide to self-preserving – that we’ll get to shortly, but first, we need to take a look at the idea of hurdle technology, “a term used…

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