Q&A: Which is more moisturizing for skin – anhydrous products or lotions? What’s the difference between moisturizing and hydrating?

In this month’s Q&A post, Gabriella asked, Hi Susan, I was wondering which is more moisturising for dry skin: an anhydrous body butter or a lotion/thick body butter with water content? Also, does the water percentage in a lotion/body butter define how moisturising they are? Is a lotion with higher or lower water % more moisturising?…