Depends on what type of BB cream you’re thinking about. In America, the difference is not much, it’s really disappointing. They might have a teensy bit more pigment in bb creams, but they don’t contain BB cream properties like anti-aging, skin whitening, sunscreen a lot of the time, so they’re just tinted moisturizer with a different name. The Asian BB Creams do double duty as foundation, concealer, sunscreen, moisturizer, anti-acne, whitening, sometimes all of these things and sometimes 3. But they tend to have more coverage and do more things than American versions overall. For more information, refer to the bb cream tag.