Hilary Duff's Pilates dedication pays off as she leaves yet another workout looking slimmed down

Since the birth of her son Luca, day in, day out, she is seen tirelessly heading to the gym or her regular Pilates class.

And on Tuesday, Hilary Duff showed off the results of all of her hard work.

The 25-year-old singer and actress looked noticeably trimmer as she headed out of her workout session in a pair of black leggings and a white T-shirt.