How does this lotion differ from a thicker body cream, and when would I choose one over the other?

Body lotions like this BISOU formula have a higher water content and lighter emulsifiers than body creams, so they spread more thinly and sink in within a minute or two. Creams contain more occlusive butters and waxes, which create a heavier barrier — useful for very dry or compromised skin, but they can feel tacky and take longer to absorb. Choose this lotion when you want hydration after a shower without waiting to dress, when you dislike the sensation of a film on your skin, or during warmer months when a cream feels suffocating. Switch to a cream in winter if your skin feels tight again by midday, or on persistently rough patches like heels and elbows that need longer occlusion. You can also layer: lotion all over, then a dab of cream only on problem areas.