Unless you have white hair or gray hair, you shouldn't leave the purple shampoo on for longer than 15 minutes at a time. If you're already leaving the shampoo on for less than 15 minutes and you're noticing a purple tone, then try leaving the product on for even less time.
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.
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.
How long you leave it in for depends on your hair type. 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.
Can you leave purple shampoo in your hair overnight? According to hair experts, it's not a good idea to leave purple shampoo in your hair overnight. The shampoo deposits purple pigment in your hair, which could possibly turn your hair purple.
Unless you have white hair or gray hair, you shouldn't leave the purple shampoo on for longer than 15 minutes at a time. If you're already leaving the shampoo on for less than 15 minutes and you're noticing a purple tone, then try leaving the product on for even less time.
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.
The purple shampoo can cause build up making the hair look dull and darker if overused." This makes the lightening process more difficult to create a seamless blend.
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.
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. It's primarily used to tone blonde (or lightened), color-treated hair.
The short answer: No! People have been trying this technique because your hair will absorb more of the purple pigment when it's dry.
Purple shampoo is for already bleached hair, so if you're hoping to lighten brown hair with purple shampoo, you'll be disappointed. This is all down to the fact that purple shampoo isn't lightening. Instead, it brightens blondes by canceling out yellow tones, which just happen to be opposite purple on the color wheel.
Apply purple shampoo to dry hair for a super glossy finish.
Let it sit for 10-15 minutes, then rinse it out with cold water. Applying the shampoo dry can leave your hair glossier and remove a persistent brassy hue. Try this if you have severely brassy hair or you've had limited results from washing with purple shampoo.
Purple shampoo is a toning shampoo used for all shades of blonde hair to help preserve its color and keep locks looking healthy and vibrant. The shampoo essentially acts as a color-correcting toner for your hair without you ever having to step foot in a salon.
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.
Just remember that if you use too much purple shampoo and remove too much of the yellow tones in your blonde, you could end up with a shade darker than what you want. You should be washing your hair regularly with a blonde shampoo to keep the colour vivid but not brassy.
Purple counteracts yellow, blue counteracts orange. They are opposites on the color wheel, so that's why. So if your hair has an orangey hue, the reality is, purple shampoo won't work. Because purple doesn't solve an orange problem.
If anything, purple shampoo may make your hair temporarily slightly darker. This is because the inky purple pigments found in purple shampoo are a darker color than the shades of yellow in blonde hair.
OK, so what is the best way to use purple shampoo? Well, for starters, you want to apply it on completely wet hair. (Note: If you have especially dry or brittle ends, we'd also recommend putting a tiny amount of conditioner on just the tips to prevent them from absorbing too much pigment.)
"Alternate your purple shampoo with a moisturizing shampoo," says Wiley. "Depending on how brassy your blonde hair is, you won't need to use the toning effects every wash, and it is important to add moisture and strengthen hair during the color process to keep hair healthy and strong."
Chlorine and other chemical residues in water, sunlight, and even oils from the scalp can also give gray or white hair a yellowish cast, says David H. Kingsley, PhD, a hair and scalp specialist in New York City.
Using a purple shampoo on grey hair can help to remove brassy yellow shades, leaving you with a flattering silver undertone.
Too Much of a Good Thing: Purple Shampoo Left On Too Long
You can, in fact, over-tone your hair. Leaving purple shampoo in your hair for an hour or more can cause your hair to look dull and lifeless. To leave purple shampoo for more than 10 minutes is already too much.