Color Treated Hair

Who Should Use Blue Shampoo?

You’ve heard of moisturizing shampoo, color-protecting shampoo, and even purple shampoo, but do you know about blue shampoo? That’s right, blue shampoo exists, too and it can have real beauty benefits for all the brunettes out there. In case you’re wondering, no, it won’t turn your strands blue. On the contrary, it can keep them looking shiny and vibrant. Keep reading to learn more about blue shampoo, including who should use it and how to incorporate it into your own hair care routine.

WHAT IS BLUE SHAMPOO?

Simply speaking, blue shampoo is shampoo with a blue tint. Just like purple shampoo, blue shampoo is formulated to bust brassiness in color-treated hair. The only difference is, where purple shampoo is intended to be used by blondes, blue shampoo is better suited to brassy brunettes. Specifically, blue shampoo should be used on brunette hair that has been lightened or highlighted. When used on lightened brunette locks, blue shampoo deposits blue-toned pigments onto your hair to help neutralize brassy tones. It’s common for color-treated hair to gradually become brassy, with red and orange undertones developing—even if you prefer a cool-toned color. But that’s where blue shampoo comes in. Think back to elementary school, when you learned about the color wheel. Imagine the wheel and you’ll see that orange is directly across from blue, which means you can neutralize orange tones with blue. And that’s what blue shampoo does, it helps cancel out the unwanted orange and red hues in your hair. Just as purple shampoo can help color-treated blondes keep their desired shade, blue shampoo can help lightened brunettes do the very same.

WHO SHOULD USE BLUE SHAMPOO?

Like we said, you’ll want to add blue shampoo into your hair care routine if you’re a brunette and have lightened your locks, either all-over or via highlights. However, if you’re a brunette and you still have virgin hair, you can also benefit from using a blue shampoo every once in a while. Doing so can help make your virgin strands appear shinier, but you’ll want to limit your usage to just two to three times per week. Colored brunettes should stick to the same rule, swapping in a blue shampoo a few times every week.

HOW TO USE BLUE SHAMPOO

Interested in using blue shampoo, but not exactly sure how to do so? Follow these steps to easily incorporate blue shampoo into your hair care routine.

Step 1: WET AND CLEANSE NORMALLY

We assume you’ve mastered using regular old shampoo, and using a blue shampoo really isn’t much different. You won’t be using blue shampoo as frequently as your regular go-to, but that’s about it as far as the differences go. Simply wet your hair, then start shampooing. One other difference: With a normal shampoo you generally want to try and concentrate the product only on your scalp and roots, but with blue shampoo it’s best to apply the blue shampoo from root to tip. This is because you want the blue pigments to work on all of your hair equally, otherwise, you might be left with brassy spots in some places and not others.

Step 2: FOLLOW WITH CONDITIONER

Whatever your hair type is, you should never skip conditioner—and this is especially true if you have color-treated hair. To help keep your color looking its very best, we recommend reaching for a deep conditioner. Try the L'Oréal Paris Elvive Color Vibrancy Rapid Reviver Deep Conditioner, which works in just one minute. Yep, 60 seconds and you're done!

Step 3: TREAT YOUR HAIR TO A LEAVE-IN TREATMENT

After you hop out of the shower, apply a leave-in hair oil or serum, such as the L'Oréal Paris Elvive Extraordinary Oil Treatment, to your damp strands. A little goes a long way here, so just dispense a dime-sized amount into your hands and apply it to the lengths and ends of your hair.

If you want to air dry your hair, you can end your hair care routine right here. If you’d prefer to break out your blow-dryer, make sure you reach for a heat protectant first. Try the L'Oréal Paris Advanced Hairstyle SLEEK IT Iron Straight Heatspray, spraying it onto your hair in sections.  

Editor’s note: Using a heat protectant is so important that we wrote an entire article about it! Here’s How to Use Heat Protectant Before Styling Your Hair.

Next: 8 Fun Ways to Change Up Your Brunette Hair Color