The Culprit: Touching Up More Than Just Your Roots
When you DIY your dye job, it's tempting to apply the product all the way down to your ends and not just touch up the new growth. Avoid this temptation! Pulling the color all the way to your ends can dehydrate your hair and result in uneven color (since the length of your hair will end up being colored over and over and over). To make sure you only tint your roots, apply conditioner from the mid-shaft of your strands down to prevent the dye from running, suggests Bodt.

The Culprit: OTT Detoxing
If you love using hairspray or salt spray (who doesn't?!), you know the importance of a good clarifying shampoo to eliminate buildup. But relying on this deep cleanser too often can strip your hair of the good oils it needs to stay healthy and protected, Bodt explains. Try using them once a month and always apply a moisturizing mask after to re-hydrate the squeaky clean strands.

The Culprit: Your Lifetime Blowout Bar Membership
We get it. Blowouts make everything better. But if you're hitting up a jam-packed blowout spot more than once a week, you may be risking excessive heat damage. "Some blowout bars focus a little too much on doing hair quickly," says Ricardo Rojas, a celeb stylist in NYC. This means they might be turning the heat up a too high and not protecting your strands as much as they should. Ask your blow-dry stylist to rough dry your hair instead of starting the blowout when your hair is wet and to keep the dryer on a lower heat setting when possible. And BYOP (bring your own protection)! We love Tresemme Thermal Creations Heat Protection Spray.

The Culprit: Not Protecting Your Hair Poolside
Aside from drying out your hair, chlorine will definitely alter your hue—especially if you have highlighted hair. If you go for a swim, always rinse your hair immediately after, recommends Rojas. Better yet, coat your strands in a hair oil (like Leonor Greyl's) or coconut oil before diving in to create a protective layer that will block out chemicals. (Plus, the heat will help it penetrate and you'll end up with a deep conditioning treatment.)

The Culprit: Nozzle-Free Blow-Drying
Your hair-dryer attachments do more than just direct the air to create a better blow-dry. They also create a bit of distance between your hair and the hot metal prongs at the tip of the dryer, which get super hot and can instantly burn your strands. Never dry without the attachment.

Planning a trip to the salon soon? Make sure to avoid these major mishaps that could sabotage your cut and color.