No, purple shampoo isn't inherently bad, but overusing it or using harsh formulas can cause dryness, dullness, or even a purple tint, as it's a treatment, not a daily cleanser. It works by depositing violet pigments to neutralize yellow/brassy tones in blonde, gray, or lightened hair, but needs to be used in moderation (once a week or less) with a good conditioner for balance and hydration.
Your hairdresser likely advised against purple shampoo to prevent dryness, dulling, uneven color (ashy/muddy), or over-toning (purple/blue tint), as it's a temporary fix not for everyday cleaning, and can interfere with future coloring by creating buildup, especially if your hair is very porous or already a bright, cool blonde. They might prefer professional toners, moisturizing treatments, or detox shampoos for better, healthier results.
You'll be pleased to know that your hair isn't going to be purple forever, purple shampoo will slowly wash away from your hair, when this happens we always advise our clients to just wash their hair a few times with regular shampoo until some of the pigment starts to come out.
But, as with many hair products, it's a good idea to use purple shampoo in moderation. Over-use or leaving it on too long can result in your hair looking dull with a purple tinge. Use it just enough to counteract the brassy undertones in your hair.
What are the worst shampoos for hair loss?
The "Big 3" hair loss treatments, popular in forums, are Minoxidil, Finasteride, and Ketoconazole shampoo, often combined to tackle hereditary hair loss (androgenetic alopecia) by boosting growth, blocking hormones, and reducing inflammation. Minoxidil (Rogaine) widens blood vessels, Finasteride (Propecia) blocks DHT, and Ketoconazole fights scalp fungus and inflammation, with microneedling sometimes considered a fourth addition.
If you're experiencing dryness, itchiness, or increased dandruff, it might be a clear sign that your shampoo is no longer doing its job. Healthy hair starts with a healthy scalp and when your products aren't up to par, they can strip away natural oils or leave behind residues that clog pores and irritate your skin.
The main downside of purple shampoo is that overuse can lead to hair becoming dull, dry, brassy, or even tinted purple/ashy because it deposits pigment and can strip moisture, so it should be used as a treatment (once or twice a week) rather than a daily shampoo, with plenty of conditioning afterward to counteract dryness. It's a toner, not a cleanser, and excessive use can build up, making hair darker or harder for stylists to work with.
Lastly but crucially, do not use purple shampoo if you have just had a toner applied to your hair at the salon. This is because it can strip the toner out of the hair!
The truth is: purple shampoo itself doesn't cause hair loss, but the wrong formula or overuse might contribute to other issues that lead to breakage or increased shedding. Here's what to watch out for: Dryness from harsh ingredients or over-toning. Buildup on the scalp if the product isn't rinsed properly.
While the violet tones in purple shampoos can help bring blonde back to life, it does this by adding more toner; in effect, covering up the mineral coating on the hair cuticle. The more you shampoo with tone-correcting products, the more buildup you create — and the darker your blonde looks.
You can go up to 15 minutes next time if you notice little to no difference after drying your hair. If you have platinum, gray, or silver hair, you can leave the purple shampoo on for up to 30 minutes, depending on how brassy or discolored your hair is.
When You Notice Brassy Tones. If your blonde, lightened, or gray hair starts to show yellow or brassy undertones, it's time to reach for purple shampoo. This product is specifically designed to neutralize those warm tones, helping to restore your hair's cool, vibrant color.
Brassy tones in dyed or bleached hair can fade over time, but they often persist as the underlying warm natural pigments re-emerge with the fading of the dye or toning treatments.
YOUR AT-HOME TONER FOR BRASSY HAIR. At its core, purple shampoo is a specially pigmented cleanser meticulously designed for blondes to actively neutralize and powerfully eliminate unwanted brassy, yellow undertones. Think of it as your secret weapon, your personalized at-home toner.
The good news is silver shine pigments are temporary it last one or two washes. If you don't want to wait that long, there are a few steps that you can take to remove the purple pigment from your hair. Shampoo with another non-pigmented shampoo right when you notice too much purple tone in your hair.
Purple toner is your bestie for neutralizing yellow hair! This works because purple sits opposite yellow on the color wheel, so it cancels out those brassy tones when applied.
How to get rid of yellow and orange tones in your hair
Unless the shampoo is specifically designed to be used as a daily toner, applying purple shampoo every time you wash your hair is typically discouraged because it can begin to eliminate too much yellow from your hair.
The purple pigment acts as a toner that helps to reduce yellow and orange hues and transform your hair into cool, hydrated blonde. Your hair stylist applies a professional toner when you get your hair coloured, but it can often fade quite quickly, which is why you may need an at-home hair toning solution.
The Benefits of Purple Shampoo for Grey and Curly Hair
Here's what makes it so beneficial: Color Correction: It neutralizes yellow or brassy undertones for a cooler, cleaner-looking grey or silver. Low Maintenance: Helps maintain that fresh, salon-fresh tone at home—in between professional treatments.
Hair Products That Damage Your Hair
The best shampoo for healthy hair depends on your specific needs (dryness, thinning, damage), with top-rated options including Pureology Hydrate for dry hair, Olaplex No. 4 Bond Maintenance for repair, Vegamour GRO+ Advanced for growth, Viviscal Thickening (with biotin) for thinning, and Hairstory New Wash for a gentle, sulfate-free clean. Look for ingredients like biotin, keratin, and niacinamide while avoiding harsh sulfates if you have a sensitive scalp, and consider specialized formulas for your hair's unique concerns.
Healthy hair care tips from dermatologists