For anyone interested in the difference with BB, CC & up and coming DD creams, here you go.
A tutorial I watched talked about which ones were better for what skin types, and honestly they said it wasn't worth it. It's just a fad, though many like to use them as primer under foundation. You also have to read ip on which ones are really dewy/shiny and might need to be paired with powder.
I've only used the one CC but tried & true tinted moisturizer worked better.