Hairspray is a styling staple, whether you’re using it to add volume and texture or to keep an updo in place. But how much do you really know about the beauty essential? We bet there's a lot you could learn.

There's a Major Difference Between Aerosol and Non-Aerosol
…Beyond the fact that one's better for the environment. Non-aerosol sprays are best for locking in shape and texture for curly hair, while aerosols work best for adding the finishing hold on a smooth or blown-out style, says Kathleen Firth, stylist and owner of Paul Mitchell Focus Salon Raika Studio in Manhattan.

 Hairspray Can Actually be good for Your Hair
While your average spray may not be amped up with added benefits, many are. Look for a formula with ingredients that nourish and repair hair. Firth loves Paul Mitchell Awapuhi Wild Ginger Finishing Spray ($19.99, Paul Mitchell salons) because it hydrates hair and fights humidity.

The 'Hold' Doesn't Mean What You Think It Does
Every single can of hairspray says something along the lines of "light hold," "medium hold," or "freeze hold." But if you think that refers to how well the spray will, well, hold your style, you’re wrong. The hold factor actually correlates with the type of hair you have, says Firth. Light hold works best for fine hair, medium works best for medium-thick hair, and "freeze hold" works best on thick hair.

Multiple Times Isn't the Best Strategy
For the best hold, Firth recommends holding the can approximately six inches from your head and spraying in a constant stream, motioning left to right.

Pricier Hairsprays Are Worth the Money
The thought of spending upwards of $10 on hairspray can be enough to make you choose cheaper alternatives—but Firth insists upgrading is worth the extra cash. Professional sprays don’t leave behind any residue, are infused with ingredients that are good for your hair, and are more likely to hold the way you want them to.

You Can Use the Bottle as a Styling Tool
In a pinch, you can forget your hot tools and work with your hairspray bottle instead. Firth suggests simply wrapping just-sprayed hair around the can to touch up waves sans heat.

The Shelf Life is Insane
Unlike with other products, you don’t need to keep track of the expiration date on hairspray. As long as it is kept in an area where the temperature is consistent, the spritz will last, says Firth. The only factors that could spoil the formula are extreme heat or cold, so it’s best to leave the spray at home if you plan on hitting the beach (or the slopes in the winter).

Clarifying Shampoo Is Its Best Friend
Inexpensive hairsprays leave behind residue and flakes, says Firth. Remove product buildup by using a clarifying shampoo once a week; it'll thoroughly cleanse hair of any unwanted leftovers.

Surprising facts about hairsprays

Hairspray is a styling staple, whether you’re using it to add volume and texture or to keep an updo in place. But how much do you really know about the beauty essential? We bet there's a lot you could learn.