The seated dumbbell shoulder pressis an exercise for building muscle and strengthening the shoulders, particularly but not exclusively the front heads. The triceps also assist. Some lifters feel that using dumbbells versus a barbell reduced injury risk.
One shoulder can’t compensate for the other, like it can during the seated barbell shoulder press
The range of motion isn’t forced like it is with the seated barbell shoulder press
Builds shoulder muscle and strength
Particularly good for the front heads of the shoulder