Doss warns that there is such a thing as too much purple. “When you eliminate too much yellow, it visually ends up darker and a lot of people don't want it to look darker,” she says. “So if you wash your hair twice a week, use the purple shampoo only once a week to keep the hair bright but not yellow.”
How Often Should You Use Purple Shampoo? Purple shampoo is meant to only be used weekly or when your hair is looking brassy — not every day. Generally, you'll want to incorporate it into your hair care routine one to three times a week in place of your usual shampoo for color-treated hair.
Too much purple tone in these products can cause the hair to look dull and over toned. The more orange the hair throws off from the shampoo lightening the natural hair, the more the public use the toning shampoo to tone out the warmth, resulting in over toned, murky, green/khaki, dull looking blonde 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.
Everyone's hair is different, but we recommend using it once every week or two, then building it up from there until you find your own cadence. Just know that it is possible to overdo it—especially if you have high porosity hair—which results in a (temporary!) purple tinge.
Using a purple shampoo on grey hair can help to remove brassy yellow shades, leaving you with a flattering silver undertone.
DOES PURPLE SHAMPOO DAMAGE HAIR? The cool violet pigment in purple shampoo won't damage hair, but if you leave it on strands too long, those purple pigments will take their job a little too far and could turn tresses a purple-violet colour.
Keep in mind that purple shampoo does not replace your regular shampoo and should only be used once or twice a week. Doss warns that there is such a thing as too much purple. “When you eliminate too much yellow, it visually ends up darker and a lot of people don't want it to look darker,” she says.
HOW OFTEN SHOULD BLONDES USE PURPLE SHAMPOO? Purple shampoo is meant only to be used when your hair is looking brassy, not every day. Generally, you'll want to use one once your hair starts looking brassy by incorporating it into your hair care routine one to three times a week in place of your usual shampoo.
If you leave purple shampoo on for too long, you may find yourself with a little lilac hue. This color is not permanent and is more likely to happen if you have very light blonde hair or if your hair is dry and damaged. To remove the purple hue, switch to regular shampoo for your next few washes.
Because it does not contain an ingredient that will chemically change the color of your hair, purple shampoo cannot truly lighten hair. If anything, purple shampoo may make your hair temporarily slightly darker.
“Purple shampoo does not cancel out orange so if the hair has any orange or yellow orange tones in it, the purple shampoo would actually make them warmer depositing red into the hair.”
Others may be too weak, meaning they need 10 minutes or more to make a noticeable difference to brassy tones if they manage to do anything at all. However, we've created the 'Goldilocks' of purple shampoos; a product with just the right level of purple tones, which takes 3-5 minutes to work its magic on brassy strands.
Don't use purple shampoo if you've got orange tones in your hair. You'll need a blue shampoo to cancel those out. Do ease into purple shampooing. Before using it at full strength, dilute it with your regular, normal shampoo – 1-part regular shampoo to 2 parts purple shampoo should work fine.
For best results, use a purple conditioner after rinsing with your purple shampoo. You may want to wash hair with your purple system twice to thrice a week, depending on your blonde level.
Warm Blondes: Leave in for 1-3 minutes before rinsing. Neutral Blondes: Leave for 3-5 minutes before rinsing. Cool Blondes: Wait 5-15 minutes before rinsing. Redken Color Extend Blondage color-depositing purple shampoo tones and strengthens to help keep your blonde brighter, healthier, softer and nourished.
Purple shampoo can stain your skin, so some people opt for gloves—but as someone who regularly uses purple shampoo, I've never used gloves and been just fine. Lather it up in your hands a bit, then work it into your scalp.
It's important to note that the pigment in purple shampoo isn't a lightener or hair dye but a gentle toner that works overtime. So it can't darken your hair or make it any lighter. For this reason, if your hair tone is too dark, it won't make it any brighter.
Purple Shampoo
If your hair is on the yellowish, orange end of the spectrum, purple shampoo will fix it. Like blue shampoo, purple shampoo is another at-home option that's formulated to neutralize brassy yellow and orange tones in color-treated hair.
Saying that, it does lather and in turn remove some build up from the hair, but I would advice you wash your hair with a normal shampoo first before purple shampoo, especially if you find your hair needs washing daily or hasn't been washed for a couple of days.
Your lightened blonde pieces will have absorbed some of the base break colour. Highlighted hair is often porous and can take on ash tones heavily – the hair then appears greyish or sometimes even silver.
It features crushed violet pigments that neutralize style-ruining brassy and yellow tones. Hair stylists often tone bleached or blonde hair to neutralize brassy yellow and orange tones on bleached hair with a purple color. Purple shampoo is a great at-home solution for toning hair and preventing brassiness.
What Is Brassy Hair? Brassiness in hair is the unwanted warm tones that appear in colored hair. This is typical for people who have dyed their hair from brown to blonde or platinum. The reason the term is “brassy” is because of the color the hair turns when orange and red tones show up in strands.
Zoe's answer: Leaving purple shampoo in your hair for longer than the recommended time is not always a good idea. The longer you leave it, the more pigments will be deposited on your hair and they could even stain it permanently.