1. To get Jessica Chastain's hairstyle, apply a frizz-taming serum to damp hair and blow dry evenly using a round brush.
2. Once your hair is dry, create a side part and curl 1 to 2-inch sections of your hair using a medium-sized barrel curling iron. Make sure to only start about halfway down the length of your hair, and work your way down.
3. Next, smooth a shine serum over the ends of your hair, avoiding your roots.
4. Finish with a flexible-hold hairspray.
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