On most heads of hair, that would mean getting a good 6-8 weeks between touch-ups – but sometimes, even with permanent dye, colour fade can happen within a few weeks. Why does this happen? Typically, hair dyes are water soluble. When you wash your hair, the dye molecules simply dissolve and your new colour rinses away.
Complete fading can take anywhere from 4 to 12 weeks, depending on hair care habits and wash frequency. Permanent Dyes: These can last much longer, often 6 to 8 weeks before noticeable fading occurs, and may take several months to fade completely, especially if the hair is well cared for.
Salon dye does tend to last longer than home bought dye. Why? That's because of the dye itself and the way it's applied. Your colourist will apply the dye to your roots and then to the rest of your hair.
Yes, permanent hair color washes out. It's called ``permanent'' because the formula makes permanent changes to your hair shaft, and not because the color stays in permanently.
"Hair color doesn't [really] expire so long as the ammonia and peroxide haven't been mixed, However, the shelf life of hair color is typically three years from production if unopened and kept away from heat and humidity in perfect conditions." A quote from Jonathan Colombini, L'Oréal Paris creative director of style ...
Over time, that extra oxygen molecule breaks down. When that happens, it's turned into water, and no longer has the special properties of hydrogen peroxide. Because the chemical compounds used in hair dye don't last forever, expired hair dye won't usually give the desired effect.
If longevity is your top priority, deep brunette or black tones generally last the longest with proper care. Of course, every shade has its own charm and maintenance level.
After all, highly porous hair easily loses its moisture, resulting in dryness, frizz, dullness, brittleness, and quicker color-fading. That's why hair experts always caution against over-dyeing. So then, how often can you dye your hair? The general rule of thumb is once every 4-8 weeks, give or take.
However, this longevity also comes with potential downsides. The chemical process used in permanent hair dye can cause damage to the hair, making it more prone to breakage and dryness.
While box dyes are cheaper upfront, they can end up costing more in the long run due to the potential need for corrective treatments. Salon dyes are more expensive initially, but they offer better results, longer-lasting color, and less damage, making them a worthwhile investment for many people.
Both protein (keratin) and moisture are essential components of healthy hair—if they're missing, your hair color could fade quickly. If hair is in poor condition (we're looking at you split ends), a protein or moisturizing treatment may be needed before you color.
Permanent hair color
Permanent hair color is the best long-lasting hair color option as it doesn't wash off. It is usually used when you want to lighten or darken your hair. If you are looking to cover your greys or opt for a global color, it is best to choose a permanent hair color shade.
Semi-permanent color washes out after 6 to 12 washings. Permanent dye may fade a little and need a root touchup or a quick refresh, but only every 6 to 8 weeks.
Yes, red hair dyes tend to fade faster because they cannot penetrate as deep into your hair, but you can extend its life by making a few easy changes to your daily and weekly routines.
Generally speaking, removing permanent hair dye requires a trip to the salon. A professional colorist should know how to remove hair dye with minimal damage, and they can help correct any color mistakes (like orange hair) that may arise from the removal process.
So How Long Should I Wait? We recommend four to six weeks between each hair coloring session, but be sure to take a look at the instructions of your hair coloring kit for the best guidance. Putting some space between colorings will help keep your hair from becoming dry and weak.
If your hair is brown, you may need to bleach it more than once before you apply the grey dye. It's important you get your hair as light as possible before you attempt to turn it grey – this will help ensure a more even tone and vibrant, all-over colour.
It could be that your hair is resistant to tint, especially when the hair texture has changed as a result of going white. But also it could be that by going lighter, either all over, or by introducing (subtle) highlights you would not see the regrowth strip quite as quickly as if it were lighter.
Red hair is notoriously difficult when it comes to upkeep. While it's the hardest color to fully strip from your hair, it's also the first to fade, often lightening drastically within the first few washes. So unless you're wanting to touch-up your own color at home, it would be wise to skip the scarlet shades.
"PLATINUM HAIR is the most expensive hair color in the world. Why? Because it takes so many products, so much maintenance, and constant care to keep it looking like this.
Brown hair colors for gray hair are the sweet spot for gray coverage if your natural shade is medium blonde to dark brown. They are also ideal if you're gray all over.
The pigments in the dye stop working after an hour. This is the reason why, once you've mixed the developer and colour together, you need to apply it to your hair immediately.
Wait at least two weeks before applying another color.
Applying dye again too soon after coloring your hair can cause extensive damage and breakage. Additionally, you will have no way to predict how the color will look, since you're dyeing over an existing dye-job.