The term blue shampoo is pretty self-explanatory—the shampoo formula is enriched with blue pigments that infuse into the hair. Won't that turn my hair blue, we hear you ask? Not quite, as the process is a little bit more scientific than that. How does blue shampoo for brown hair work? As mentioned, blue shampoos can be overly drying and may throw off a blue tint if used too frequently. Other than that, Bonilla says that it’s best to avoid shampoos that contain silicone and some harsh sulfates. Not only can they weigh your hair down, but they may also lead to breakage. Aesthetically, the risk of overusing a pigmented shampoo is that it can cause your hair to look dull. There are plenty of everyday hair products out there, but not every formula is suited for everyday use. Just as clarifying shampoos and hair growth shampoos are often best used as-needed, your blue shampoo may come with specific instructions, especially in terms of frequency and methodology. zigsmum Great product and Great Price @M&S Gorgeous smelling shampoo which works to keep natural grey hair silvery rather than brassy yellow. I like Aveda products but they are pricey so delighted to get 25% off with M&S

Frequency of Use: Bonilla recommends using a blue shampoo once every two to three weeks. Our research confirms that those who choose to use blue shampoo more often than that may experience dryness (a common complaint with this type of shampoo). You may also notice a buildup of pigment if you use blue shampoos too frequently. When shopping for a blue shampoo, both Wiley and Korab agree that customers should avoid products with sulfates. Korab adds that you should also steer clear of parabens and silicones. Theresa Holland has been contributing to Byrdie since 2020, covering wellness, makeup, skincare, and haircare. For this story, she interviewed two stylists for product recommendations and insight into the science of color-depositing hair washes. Having tried a handful of blue/purple shampoos in the past, she's particularly fond of Fanola and Kevin Murphy. You can read more stories by Theresa on MyDomaine and The Spruce.Hairstylist Jennifer Korab agrees, adding, "As the weeks progress, it’s common for color-treated hair to become brassy regardless of color tone. Blue shampoo can counterbalance the brassy pigment and extend the life of the hair between salon visits."

Gloria Bonilla, colorist at NoMad: Celebrity-hairdresser, Sally Hershberger’s, salon in downtown NYC Those who bleach their hair and live in hard water areas (which creates more mineral build-up on strands), should only use it once a week. Meaning, one bottle will last you until your next colour appointment, if not longer. While there are many standout blue 'poos on the market, Matrix Brass Off shines above the rest. Formulated specifically for lightened brunette hair, this sulfate-free hair wash deposits blue-violet pigments to minimize brassiness. In other words, it creates a stunning cool-toned finish that brings out the intended effect of your color-treated hair. The vanilla-rose scent doesn't hurt either. Sulfates: Haircare ingredients can play a big part in the overall health of your hair as well as the surrounding skin. Sulfates are cleansing agents that can be found in cosmetics, soaps, and hair care products. Some of them are particularly drying and potentially irritating for the skin. Dr. King says certain sulfates like sodium lauryl sulfate (SLS), ammonium lauryl sulfate (ALS), and sodium laureth sulfate (SLES) are cleansing agents known to strip your hair of its own oils, therefore causing dryness and potential scalp itchiness. I decant half my purple shampoo into half a bottle of Oribe Shampoo For Moisture Control," she says.The effect is softer, both in terms of the colour and how my hair feels afterwards. I wouldn’t recommend taking your purple shampoo right down to the ends. The hair there can be up to four years old so will grab onto too much of the purple pigment. Silicone: Silicone is another potentially problematic ingredient for hair and scalp care. This is because silicones are not water soluble, and some types may build up and leave a residue on hair strands. This ultimately prevents moisture from getting into the hair shaft, which may, over time, make the hair dry and weak. The ‘bad’ silicones will leave a mask effect over your hair, meaning they’ll make your hair feel silky and smooth in the short term but will eventually cause damage. There are, however, some silicones, such as PEG-7 dimethicone, which are lighter and water-soluble and therefore less likely to cause damage. .

Classy49 Fantastic blue malva Perfect shampoo for greying hair,adds silver tones and shine along with leaving hair in great condition. Simply put, Wiley says that blue shampoo "is ideal for anyone with dark blonde, gray hair, [or] brunette hair." This applies whether your brown color is natural or not, but if it's not, she adds that blue shampoo is ideal "to maintain the color of hair after a salon appointment."It all depends on the instructions on the specific bottle, but not overdoing it is key. "If you leave a purple shampoo on for too long, your hair will have a blue-purple tinge to it," Irwin cautions.