While permanent hair dye won't wash out of your hair in the same way that temporary, or semi-permanent hair dye does, it will eventually start to fade and change shade over time. The colour you go for will also influence how long your hair will stay vibrant.
Ideally, permanent hair colour would stay just as vibrant as it was the day you coloured it, at least until the roots grow. On most heads of hair, that would mean a good 6-8 weeks between touch-ups.
Permanent hair dyes have much more staying power than semi-permanent hair dye or temporary hair dyes, but they still fade a bit with every wash. What is this? The good thing about permanent hair dye, though, is that it will stay vibrant up until that 8-week mark in most cases.
Disadvantages of Permanent Dyes
Can be more damaging to your hair than semi-permanent or temporary dyes. The chemicals used are stronger. The mixture usually has to be left on for a longer period of time. Cannot be washed out if you are unhappy with the colour.
3: Salon color lasts longer and is healthier on your hair than box hair color.
Stripping hair color with a professional
If you're looking to get rid of hair color, the safest way is to contact a professional at a salon. A colorist may use bleach or sulfur-based hair stripping products to lighten your hair back so that it can be re-dyed.
"You must understand that it will take some patience during the transition," says Kandasamy. "You will have to grow your roots at least one to two inches. That means you will have to wait anywhere from two to four months to allow your hair to grow an inch or two. (If you can, wait even longer)."
Give it a month to 6 weeks after bleaching and see if your hair starts to recover.
Bleed the color out
A regular or clarifying shampoo would be the best product in this situation, and ideally, you should keep washing it until enough dark dye has bled out of your hair that you're happy with the resulting hue.
As natural brunettes, brown hair dyes can last the longest compared to other hair dyes. There's no need to bleach your hair colour as the eumelanin content will allow the hair colour to stay on longer.
“A big trick is always using hot water when you shower, because it's opening up the cuticle and getting that dye to fade quicker,” she says. “Most brands and professionals will recommend cold water to keep the color vibrant, but for fading definitely use warm [or] hot water.”
The black color lasts around 6-8 weeks depending on how frequently you shampoo.
Your natural hair colour will make a difference too. If you have dark brown or black hair then the dye should last at least 6 weeks before fading out. But for lighter colours like blonde, reds and anything lighter than this, they only make around 3-4 weeks before showing signs of fading.
Permanent hair dye is interesting, because while it is indeed permanent (you'll never be able to remove it completely from your hair without bleach), it does change color and morph over time.
Some, particularly permanent hair dyes, alter the structure and makeup of the hair. Many hair dyes can damage both the inner and outer parts of the hair shaft. Both natural and synthetic dyes may weaken hair, but permanent dyes may cause more damage as they penetrate deeper into the hair shaft.
Unfortunately, hair Color damages your hair. When you dye your hair it lifts the cuticle, altering the hair in a way that will never completely revert back to it's natural virgin state. However, the hair that grows from your scalp will grow out normally so only the hair that has been dyed is affected.
Clarifying shampoos are one of the safest and gentlest tools for lightening or removing hair color. Always remember to support your hair with a good conditioner to preserve the health and shine of your tresses. For quick results, we recommend the Neutrogena Anti-Residue Shampoo.
A lightening or clarifying shampoo can lift the color and help you get the desired result. You can request that your stylist use a shampoo that is designed to lighten your hair. You can also wash your hair with clarifying shampoo in between salon visits safely to lift the color even more.
Ways to Get Box Dye Out of Hair
“The safest and gentlest way to go is using clarifying shampoo and leave it in for around 15 to 20 minutes,” Tammy suggests, a treatment that can be repeated a few times. She recommends following up with a repairing hair mask like Olaplex No.
They typically contain high amounts of ammonia, PPDs, nitro dyes, metallic salts, and even unclean henna. These are harsh chemicals that can be extremely damaging to the hair as well as cause reactions to sensitive skin and allergies. When you apply box dye, the hair is permanently altered.
One of the main reasons why hairdressers hate box dye is the difficulties that come with colour corrections. Eventually, many clients who box dye their own hair will come to a salon for a colour service – whether it's because they need their colour fixing, or just because they now want a professional result.
Are salon hair dyes better? Simply put, when it comes to salon color vs. box dye, it's always best to get your hair colored at the salon by a professional. Salon formulas better for your hair, and having a pro colorist apply it also ensures the best results.