- Permanently dyed hair takes approximately two years at least to grow out.
- That’s the same as saying it will take two years for new hair to replace dyed hair.
- Today, I’ll help you find out exactly how long your dyed hair will take to grow out and what you can do in the meantime.
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At times, I feel more like a fortune teller than a hairdresser.
Why do I say this?
Let’s say you are a hairdresser, and through your social networks, you receive the following question: “How long does it take for permanent hair dye to grow out?” What would you think?
You might feel perplexed and try to figure out what they’re trying to ask you.
The same thing happened to me.
Because permanent dye doesn’t grow. What grows is the hair .
So, using my common sense, I guessed that what the person really wanted to know is how long it will take for new hair to replace hair that’s dyed with permanent dye.
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Is this the same question you have, but better expressed?
So, we’ve agreed on that, and we can start a conversation. And I can tell you all about how long it takes for color-treated hair to grow back.
How long does it take for permanently dyed hair to grow out?
Hair grows between one and two centimeters (0.4 and 0.8 inches) monthly. Why on average?
Diet, your hair’s health, and even hormonal changes influence hair growth.
So, to find out how long it will take for your new hair to replace your dyed hair, I invite you to try this little exercise.
- Find a tape measure.
- Comb your hair and place the number 0 where your roots begin at your part, which is virgin hair. Measure where the dyed hair begins. Your roots are the new hair that replaced your colored hair.
How many centimeters did you measure? One centimeter? One and a half centimeters? Two centimeters?
Let’s say your roots, which aren’t dyed, are one and a half centimeters long. And it’s been a month since you dyed your hair. In other words, your new hair grows one and a half centimeters per month.
That means that at two months, you will have three centimeters of new hair without any permanent dye. You will have four and a half centimeters of new hair without permanent dye at three months.
And after a year, you’ll have 18 centimeters of new hair without dye.
I know it can be disappointing. But don’t give up because you can still do a lot while your dyed hair grows out. Are you interested in getting a plan? Read on.
What to do while your color-treated hair grows out
Take note of this plan.
Trim your ends every month
- If your hair grows one centimeter per month, trim one centimeter.
- If it grows 1.5 centimeters per month, trim 1.5 centimeters.
That way, you’ll be removing some of the dyed hair without changing the length.
Also, you’ll strengthen your hair by removing split ends, the most damaged parts. It will lose fewer vitamins and nutrients.
Apply rosemary oil masks
Some recent studies claim that rosemary oil contains properties similar to the famous Minoxidil, a vasodilator drug used to treat alopecia or hair loss.
Apply a rosemary oil mask once a week, leaving it on overnight, to stimulate hair growth.
Dye your hair with semi-permanent hair dye to keep your hair color looking good while the dyed hair grows out
As you know, transitioning to uncolored hair is not easy. As the months go by and your hair grows out, the difference between the dyed and natural hair will be very noticeable. And your hair will look messy.
Ideally, you should apply a semi-permanent hair dye . This will gradually fade with washing because it won’t penetrate inside the hair.
Semi-permanent hair dyes form a film of color on the outside of your hair, adhering to the cuticles. They fade with each wash.
Permanent hair dye changes the color of your hair, which is irreversible. As your new hair grows, you can trim the ends one centimeter per month to remove some of the dyed hair every month.