A good exercise to isolate the shoulder muscle's especially the deltoids.
Raise the dumbbells to shoulder height, with your palms facing in towards you.
Lift the dumbbells up bringing the weight above your head, in a smooth motion.
Inhale as you lift the weight up, and exhale as you lower the weight back down to your shoulder's, then repeat.
Aim to keep elbows tucked into your side at the start of the lift, and keep your palms facing inwards throughout the lift.
This exercise can be performed either seated or standing, with both hands or alternating each arm.

BEGINNERS
Aim for 8/12 repetitions light weight. Repeat twice.
INTERMEDIATE
Aim for 8/12 repetitions medium weight. Repeat twice.
ADVANCED
Aim for 8/12 repetitions suitable weight. Repeat three times.
Tutorial provided by netfit
Raise the dumbbells to shoulder height, with your palms facing in towards you.
Lift the dumbbells up bringing the weight above your head, in a smooth motion.
Inhale as you lift the weight up, and exhale as you lower the weight back down to your shoulder's, then repeat.
Aim to keep elbows tucked into your side at the start of the lift, and keep your palms facing inwards throughout the lift.
This exercise can be performed either seated or standing, with both hands or alternating each arm.

BEGINNERS
Aim for 8/12 repetitions light weight. Repeat twice.
INTERMEDIATE
Aim for 8/12 repetitions medium weight. Repeat twice.
ADVANCED
Aim for 8/12 repetitions suitable weight. Repeat three times.
Tutorial provided by netfit