How to Fix Brassy Hair: Causes and Solutions for Common Color Complaints
- Amanda Major
- 2 days ago
- 3 min read
Brassy hair is one of the most frequent complaints from people who color their hair. That unwanted orange, yellow, or red tint can be frustrating, especially when you expect a cool, natural, or vibrant tone. Understanding why brassiness happens and how to fix it can save you time, money, and stress. This guide explains the main causes of brassy hair and offers practical solutions to restore your desired color.
Why Does Hair Turn Brassy?
Brassiness happens when the underlying pigments in your hair show through or change due to various factors. Here are the most common reasons:
Wrong Color Formulation
When hair color is applied incorrectly, the result can be uneven tones or unwanted warm hues. For example, if a colorist uses a formula with too much red or orange pigment, or if the developer strength is off, the hair may develop brassy tones. This is especially common with blonde hair, where lifting the natural pigment exposes yellow and orange undertones.
Sun Exposure
The sun’s ultraviolet rays break down hair pigments and fade color. Over time, this can cause hair to lose its cool or neutral tones and shift toward warmer, brassy shades. Sun exposure also dries out hair, making it more porous and prone to color changes.
Hard Water Mineral Build-Up
Water with high mineral content, such as calcium and magnesium, can leave deposits on hair. These minerals interact with hair color and cause dullness or brassiness. Hard water can also make hair feel rough and look less vibrant.
Excessive Heat Application
Using hot tools like flat irons, curling irons, or blow dryers frequently and at high temperatures damages the hair cuticle. This damage can alter how color reflects light, leading to brassy or uneven tones. Heat can also accelerate color fading.
How to Fix Brassy Hair
Fixing brassy hair involves reversing or neutralizing the unwanted warm tones and protecting your hair from further damage. Here are effective methods to try:
Use a Purple or Blue Shampoo
Purple shampoo is a popular and easy way to combat brassiness. Purple tones neutralize yellow hues because they are opposite on the color wheel. For hair with orange or red brassiness, blue shampoo works better as it cancels out those warmer tones.
Use purple shampoo once or twice a week.
Leave it on for 3 to 5 minutes before rinsing.
Avoid overuse, which can cause a slight purple tint.
Apply a Toner
A toner is a semi-permanent color treatment that adjusts hair tone after bleaching or coloring. Toners can cancel out brassiness by depositing cool pigments like ash or violet.
Toners are best applied by professionals for precise results.
They usually last 2 to 4 weeks.
Some toners come in at-home kits but follow instructions carefully.
Clarify Your Hair Regularly
Clarifying shampoos remove mineral build-up, product residue, and impurities that dull hair color. Using a clarifying shampoo once every 1 to 2 weeks helps keep hair clean and color vibrant.
Choose a gentle clarifying shampoo to avoid drying out hair.
Follow with a deep conditioner to restore moisture.
Protect Hair from Sun and Heat
Preventing further brassiness means shielding your hair from damaging elements.
Wear hats or use UV-protectant sprays when outdoors.
Limit heat styling or use heat protectant sprays before styling.
Lower the temperature on hot tools to reduce damage.
Use Color-Depositing Conditioners
Color-depositing conditioners add subtle tones to your hair while conditioning it. They can help maintain cool shades and reduce brassiness between salon visits.
Choose a conditioner with violet or blue pigments.
Use it once or twice a week for best results.
Avoid Over-Washing
Washing hair too often strips natural oils and fades color faster. This can make brassiness more noticeable.
Wash hair 2 to 3 times a week.
Use dry shampoo between washes to keep hair fresh.
When to See a Professional
If home remedies don’t fix brassiness or if your hair feels damaged, it’s best to consult a professional colorist. They can:
Assess your hair’s condition.
Create a custom color formula.
Apply professional toners or glosses.
Recommend treatments to repair damage.
Trying to fix severe brassiness at home may lead to uneven color or further damage.
Tips to Prevent Brassiness
Prevention is easier than correction. Here are some tips to keep your hair color looking fresh and brass-free:
Choose the right color formula for your hair type and desired shade.
Use shampoos and conditioners designed for color-treated hair.
Rinse hair with cool water to seal the cuticle.
Avoid prolonged sun exposure and wear protective styles.
Limit heat styling and always use heat protectants.
Schedule regular salon touch-ups and deep conditioning treatments.
If you're having issues with brassy hair, contact us to schedule a consultation.




