When you have fine, curly hair, you'll be tempted to break up your curls to make them look bigger and more voluminous. However, this also creates frizz. Choose extremely lightweight products that add volume and fight frizz simultaneously.

Treatment: A hydrating mousse is your friend; it will build volume while moisturizing away frizz. Use R+Co Chiffon Styling Mousse, $27, on damp hair. It thickens while it smoothes.

Styling: Alterna Bamboo Anti-Frizz Curl Defining Cream, $25, gives curls hold without the crunch of a gel, and it's light enough for fine hair.

Keep styling products to a minimum on straight hair. You want maximum volume without the frizz.

Treatment: Spray Bumble and Bumble Hairdresser's Invisible Oil Primer, $27, onto damp hair and comb through. The primer conditions and protects, but is light enough that you can still build volume.

Styling: Once hair is dry, seal out frizz with a smoothing hairspray like Garnier Fructis Sleek & Shine Anti-Humidity Aerosol Hairspray, $4.29.

A few drops of anti-frizz oil on the ends of damp hair will help to smooth flyaways, and prep for styling.

Treatment: Try L'Oréal Professionnel Mythic Oil Nourishing Oil, $32, a lightweight oil with hydrating avocado and grape seed oils.

Styling: John Frieda Frizz Ease Dream Curls Air-Dry Waves Styling Foam, $8.99, adds hold to loose waves while eliminating frizz.

Look for styling products that enhance curls so you can skip the curling iron. Instead, dry your hair with a diffuser.

Treatment: Wash hair with Living Proof Curl Conditioning Wash and Curl Detangling Rinse, $26 each, specifically developed to treat frizz in curly hair.

Styling: Style with a curl-defining mousse or gel like Kérastase Couture Styling Curl Fever, $37, which will give curls shape and hold, while also smoothing frayed ends.

When straight hair gets frizzy it's a sure sign your hair is in need of major moisture. Use a conditioning product on wet hair, and look for a styling product specifically geared towards treating frizz.

Treatment: Swap out your regular conditioner for a conditioning treatment like Aussie Moist 3-Minute Miracle Deep Conditioner, $5.99, to smooth out damaged hair and re-hydrate.

Styling: Suave Professionals Sleek Anti-Frizz Smooth and Shine Cream, $2.88, can be used on dry hair to smooth frizz and add shine.