What is the longest you should leave purple shampoo in for?

Author: Waldo Pollich  |  Last update: Thursday, October 30, 2025

To solve the problem of having lilac-tinged hair, the best way to use purple shampoo is by applying one day per week or when you start to notice brassy tones. Unless you have white hair or gray hair, you shouldn't leave the purple shampoo on for longer than 15 minutes at a time.

Can you leave purple shampoo in too long?

The Dangers of Purple Shampoo: If you leave it on too long, it WILL make your blonde darker. We never suggest more than three minutes max, unless you dilute it with your daily shampoo. If you use it as you're only shampoo, your hair WILL dry out and become brittle.

Can I use purple shampoo 3 days in a row?

It might take a couple washes since you used purple shampoo too often . It is recommended to only use it once every two weeks/ once a week max . Is not meant to be an everyday shampoo since it can dry your hair and cause product buildup.

What happens if you don't wash out purple shampoo?

Drying Out: Leaving purple shampoo on for an extended period can dry out your hair, especially if it's already processed or damaged. Color Build-Up: If used too frequently or left on too long, purple shampoo can lead to an unwanted violet tint in your hair.

How long does the effect of purple shampoo last?

How to fix “purple shampoo hair” 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.

HOW TO USE PURPLE SHAMPOO | ALL OF YOUR QUESTIONS ANSWERED! | ERICA HENRY JOHNSTON

What is the downside of purple shampoo?

One downside of purple shampoo is that overuse can lead to a purple or violet tint, especially if left on for too long. It's important to follow usage instructions to avoid this issue and to ensure the best results for your hair.

Should you put purple shampoo on wet or dry hair?

Visually, this will make your hair look darker, and if you just went through the trouble of getting it colored blonder, this is probably something you are going to want to avoid. Purple shampoo should be applied in the shower or during a hair wash. While your hair is wet, apply the shampoo and lather it onto your hair.

Why I stopped using purple shampoo?

This is were the over using it can cause problems. "You want to stop using it two weeks before any lightening service. 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.

How long does it take purple shampoo to remove brassiness?

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.

What does brassy hair look like?

Brass usually shows up as yellow or orange tones in blonde hair and orange or red tones in brunette hair. Brassy hair is caused by an overabundance of warm pigments in your hair, usually caused by bleaching and the hair coloring process.

What happens if you use too much purple shampoo?

Over-toning: Purple shampoo is designed to neutralize yellow or brassy tones in blonde or gray hair. Using it excessively can result in over-toning, leaving your hair with a dull, ashy, or even slightly purple tint.

What does purple shampoo do to grey hair?

Purple shampoo has been used for decades by hairdressers, mostly to help tone and neutralize blonde and gray hair, getting rid of brassy or yellow tones for an overall more cool-toned look.

How often should you wash your hair?

Generally, he says, the range is somewhere between once a day and once a week. “If you have very fine or thin hair, you may need to wash more often, while those with thick or curly hair may need to wash less often,” says Dr Elizabeth Bahar Houshmand, a double board certified dermatologist and hair health expert.

Can I use regular conditioner after purple shampoo?

Purple shampoo can be drying, so be sure to follow up with a purple conditioner and/or your favorite color-protecting hair mask to restore lost moisture.

Can you sleep with purple shampoo in your hair?

No it will keep depositing, and either become more purple or blue. Never sleep with a toner on. Clarify shampoo your hair to get excess purple out, or it may come out with normal shampoo.

What is level 9 hair color?

Level 2–3 is extremely dark brown, as level 1 is black. Level 9–10 is very pale blonde. Color does not lift color; only bleach can make your hair lighter.

What happens if I leave purple shampoo in my hair for 30 minutes?

If you leave purple shampoo in your hair for 30 minutes, the risk of over-toning increases significantly. While purple shampoo is designed to neutralize brassy or yellow tones, leaving it on for an extended period can lead to overly cool or even purple-tinted hair, especially for those with light or porous hair.

What is the best purple shampoo?

Our top pick for the best hydrating purple shampoo is Kérastase Bain Ultra-Violet Purple Shampoo. We also love Verb Purple Shampoo for its nourishing effect from roots to ends. For a formula with bonding technology, consider Amika Bust Your Brass Blonde Purple Shampoo or Olaplex No.

What is the fastest way to remove purple shampoo from hair?

Warm Water Rinse

The warmth helps to loosen the purple pigment left behind by the shampoo. Massage your scalp and run your fingers through your hair under the water to help break down the residue. Continue rinsing until the water runs clear, indicating that most of the purple has been washed out.

Does purple shampoo work better the longer you leave it on?

A lot of people ask about leaving purple shampoo in their hair for an hour or more to get a more intense result. This definitely isn't necessary! In fact, when it comes to how long to leave purple shampoo in, a few minutes will do. This is all you need with our Nexxus Blonde Assure Purple Shampoo.

What is the best shampoo for hair loss?

Top shampoos for thinning hair, at a glance
  • Best Overall: Nizoral Anti-Dandruff Shampoo, $15.
  • Best for Thickening: Kérastase Densifique Thickening Shampoo, $44.
  • Best for Damaged Hair: Vegamour Hydr-8 Shampoo, $38.
  • Best for Volume: Bumble and Bumble Thickening Volume Shampoo, $37.

What not to do with purple shampoo?

Don't Overuse Purple Shampoo

You only need to use purple shampoo once a week to see a difference. Overuse can make the blonde seem darker and make the lightening process more difficult for future hair appointments. Overuse can also make the hair look dull and over toned.

How long should purple shampoo sit?

Let the Shampoo Sit

Let the shampoo sit for two to five minutes depending on how brassy your hair is and how ashy you like your color, then rinse thoroughly. The difference between two minutes and four minutes with purple shampoo is a big one so keep an eye out. It may be helpful to set a timer so you don't go over.

Do you rub in purple shampoo?

Ready to use your purple shampoo? Dispense into your palms, then rub your hands together before applying onto the hair. Massage in from root to tip, lathering the shampoo as you go. Focus on the areas that are particularly brassy to knock out those unwanted yellow tones.

How to get the best results from purple shampoo?

How to Use Purple Shampoo
  1. Wet hair.
  2. Lather the purple shampoo on your hair.
  3. Depending on your hair's level of brassiness, leave the purple shampoo on for two to three minutes.
  4. Rinse the shampoo out.
  5. Apply a purple conditioner to nourish your hair and prevent breakage.

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