When it comes to finding the right haircut that will allow strands to be as full of body as possible, Arrojo makes the argument that soft layers are preferable over more harsh, structured, blunt cuts. "Fine hair tends to be limp and fall flat, so cuts with soft shape and soft lines work best. Strong styles with strong lines that are dependent on structure just won’t hold their shape, and will leave hair looking deflated."

As far as length, Arrojo says that there can be some flexibility, although he claims that short cuts are pretty foolproof for creating volume in fine strands: "When hair is on the longer side, the extra weight pulls it down, making it look fine and thin. Conversely, when cut short, hair lies on top of each other and with it comes the illusion of thicker hair. If you’re conscious of fine or thinning hair, a shorter style might be just the ticket." Arrojo is a big fan of Keira Knightley's choppy bob for its fashion-forward, yet soft and romantic look.

Photo: Everett Collection/Rex USA