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Whether you've just lightened your hair or are a blondie who's just trying to stay blonde, brassy locks can be your biggest nightmare. Don't worry, you're not alone. Most girls who go lighter struggle month to month just trying to keep the brassiness out of their hair. It can be a pain, but there are ways to counteract those brassy tones and keep your light, pretty hue.
Use a hair toner product on your locks. Toner is usually a blue or purple color, to help neutralize that brassy orange color, and can be found at most beauty supply stores. Purple is opposite orange on the color scale, so you can see how the saying "opposites attract" works in your favor here. Don't overdo it and go toner-crazy; this can leave you with a violet shade of hair. Once every couple of weeks or so is enough to get rid of -- and prevent -- brassiness, without turning you into Barney.
Apply a semi-permanent hair dye or rinse, which is a "deposit only" type of hair color, onto your hair. Do this when your hair starts to get brassy, although you should try to avoid doing it more than once every four to six weeks, to prevent damage.
Change your shampoo and conditioner to a color-protectant version of each. These are the products you use every day -- or at least a few times a week anyway -- and if you're using the wrong products they're only going to enhance the brassy tones in your tresses. There are specially formulated shampoos and conditioners you choose based on your hair type and color. Also, read the label and look for natural, gentle ingredients safe for color-treated hair, such as aloe vera and avocado oil.
Stay out of the sun. Overexposure to the sun can result in more than just dryness and damage to your hair, it can also cause brassiness. Toss on a sunhat before heading into the great outdoors to ward off brassy tones in your hair.
Choose natural hair care and styling products. Chemical-based products full of heavy, harsh ingredients can end up leaving a buildup on your hair, which can contribute to the brassiness. It's always best to read the label on any product before buying and using it, and look for natural, gentle ingredients such as aloe vera and avocado oil.
Check your water supply. High iron deposits in your home water supply can be a contributor to annoying brassy tones in your hair. If this is the case in your home, using a water softener with an iron filter on your showerhead should be enough to combat the problem.
Give your hair a break between shampoos to fight off brassy tones and help keep them from making their mark again in the future. It's the mineral deposits in your pipes and cleaning ingredients in your shampoo that can cause your color to fade and result in brassy frustration. Reduce the times you shampoo your hair during the week to fight this problem.
Use a toning shampoo and conditioner once a week -- but no more so your hair doesn't end up a violet shade -- to neutralize any brassy tones.