Hair dye does not affect your natural hair color! After you dye/bleach your hair, new hair which grow out will always be your natural color unless some other factors affect that color.
Although most colorists will be able to take you back to brown after bleaching in one session, the process of returning your hair's natural shade is gradual. Each layer of dye applied contributes more depth and intensity so it might not happen all at once.
In short, the general consensus among the celebrity hair colorists I consulted with is that, yes, dying and bleaching your hair permanently alters the integrity of your hair. You're using powerful chemicals to change the makeup of it, after all, and there's not necessarily a magic reversal wand you can wave to undo it.
"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)."
Does dye damage natural hair? Unfortunately, what you've heard is true: Dyeing your natural hair actually can damage your texture—but not necessarily all at once. It usually takes repeated exposure for intense damage to be done, or if you're taking your dark hair to, say, platinum blonde.
How long does permanent hair dye generally last? Permanent hair dye typically lasts for between four to eight weeks before it grows out or fades (more on that below).
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. They can also assess your hair for damage and recommend the best treatment option.
Altering the hair's protein structure through permanent and demipermanent dyeing can cause side effects that include: loss of hair strength. less ability for your hair to handle heat styling. reduced hair thickness.
If you are using a permanent hair color you have to lift the hair using hydrogen peroxide (developer). This process raises or opens up the cuticle layer of the hair to allow the color molecules to penetrate the cortex depositing the color which could damage the hair if not done properly.
Your hair may look thinner
So when you stop coloring your hair may have a noticeable loss of actual volume and the appearance of it.
Give it a month to 6 weeks after bleaching and see if your hair starts to recover.
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.
Hair dyeing does not inhibit hair growth, but it may cause hair loss by damaging the hair that is color treated.
The agents in dyes can weaken and damage hair, which may make it look unhealthy. However, treatments such as conditioners and specially formulated shampoos may help repair hair damage from hair dye. Dyeing the hair with chemical or natural dyes can damage hair.
Predominantly, human hair can be of five different colors: black, brown, blond, white/gray, and rarely red. Among these major colors, different shades also exist.
Others have curls and straighten them out. But for a few people, their hair actually changes shape and texture on its own — and not just because of the weather. Scientists don't know exactly why this happens, but it probably has to do with a combination of genetics, hormones and body chemistry.
Although hair re-growth may be possible, you should also know when to seek professional help. If the reason for thinning hair is genetics, it will not grow back on its own. To grow back a healthy, full head of hair, you'll need to take action, and that involves reviewing different hair loss options.
If you're confident you don't like the color you can reverse that process, washing the color you don't love within 48 hours in order to start the fading. “All things that have color eventually fade, from paint on a wall, to the dye on your clothing, so the color on your hair will fade as well,” Shelley continues.
The peroxide has a strong dying agent which causes the hair to feel dry and straw-like. Over time, and with repeated colouring sessions, these changes in the structure of your hair will leave it weaker and more prone to breakage. The more hair is dye damaged, the less the colour holds.
Let your bleached hair grow out for about 2 months.
If you just got your hair re-bleached, let it grow out for a couple of months so you can see your natural hair color. That way, you'll be able to match it perfectly, and your new hair color will blend seamlessly into your roots.