These fragile strands lack any natural fullness and tend to fall flat, says Jeni Thomas, Ph.D., principal scientist for Pantene.
To create maximum volume, look for lightweight products with the words thickening, amplifying or body-building on the label, says Harry Josh, John Frieda International Creative Consultant.
Blow-drying is a must: Heat activates stylers so they can work their magic. Set on medium to high and keep the nozzle moving to avoid burning your scalp.
Nexxus Diametress Luscious Volume Shampoo, mass retailers, $14. A translucent cleanser with no heavy conditioners to make hair greasy.
Samy Fat Hair "0" Calories Amplifying Mousse, mass retailers, $7. Super lightweight with a pretty, fresh scent.
Pantene AgeDefy Advanced Thickening Treatment, mass retailers, $19. Use daily for at least a month to increase the diameter of each individual hair fiber.
John Frieda Luxurious Volume Fine to Full Blow-Out Spray, mass retailers, $6.50. Adds fullness and leaves strands silky enough to run your fingers through.