Argan oil is serum with Argan oil in it IYSWIM, Ginger, so it won't fry your hair.
If your hair is curly, then you will have to style and use products too, if your hair is fine and thin and curly, you probably need to blow dry smoothish with metal barrelled round brush for volume, and then use a cream for definition, as per BOF, if thick, then probably also use straighteners and wax or vitapointe or finishing cream to get the piecey finish.