A common reason behind fast-fading hair color is insufficient processing time, meaning the hair color did not stay on long enough. This especially holds true if you or your client have grey hair. Grey hair cuticles are tightly packed down and take longer to open and absorb artificial hair color molecules.
If you have medium or high porous hair, your hair has trouble keeping moisture which, in turn, causes hair color to fade faster. It can't lock-in the dye. If your hair always feels dry, it may be because it's porous. Try adding more hair oils, creams, and conditioning treatments to your hair care routine.
Hair dye washes out when color molecules don't fully penetrate into the hair's cortex or when the color molecules are too small to stay inside the hair's cortex. This allows water to rinse the color out of hair.
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.
“I generally tell my clients to wait 48 hours before they wash their hair,” VanDyke says. During the first 48 hours after a color service, the pigments of the salon color are still settling—meaning if you shampoo your hair too soon after an appointment, it can cause your hue to fade quicker.
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.
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Professional Dye Lasts Longer
That being said, most at-home dye kits don't last very long, and you may find yourself buying another one in just a few weeks to help keep your hair vibrant.
Hair loss after hair dyeing is common due to the manipulation of the hair shafts during the dyeing procedure. Permanent dyeing involves rubbing the dyestuffs into the hair and scalp and then rubbing the hair and the scalp with rinsing with water to remove the extra dye.
Treat with Hair Oil
A heat protectant will coat your hair, creating a barrier from the heat, as heat can react with the colour in the cuticle, causing fade. Try using a lower heat temperature combined with a heat protectant to prolong your colour.
Does permanent hair dye fade? Sadly, yes. 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.
Shampooing Too Often After Coloring
Depending on whether your dye is temporary or permanent, your color may last anywhere from 6 to 30 washes. For those who wash their hair multiple times a day or week, this means your hair color may fade faster. The solution is simple – wash your hair less to save your color.
A common reason behind fast-fading hair color is insufficient processing time, meaning the hair color did not stay on long enough. This especially holds true if you or your client have grey hair. Grey hair cuticles are tightly packed down and take longer to open and absorb artificial hair color molecules.
Just as with blonde hair, red hair requires a little extra tender love and care. Hack admits that red hair is his favorite to color, but that she's noticed many women don't realize the extent of after-care that's needed. “Red is the hardest color to keep lustrous and the hardest color to remove,” she adds.
natural red-heads have notoriously difficult hair to colour. As most red-heads know, if you try to go darker, the colour doesn't stick to the hair like it would on a blonde or brunette.
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It's not your imagination — red hair dye does fade faster than other hair color shades.
Wash With Cold Water!
Most people don't enjoy cold showers, but washing your hair with cold or lukewarm water is the best way to keep your color from washing out. Hot water opens the surface area of the hair strand, which allows your hair color to escape more easily.
Izquierdo says to wait three days. “This gives time for the cuticle to close and the color to set,” he says. That's why you might want to skip a workout or two so you don't have to wet it or wash it—if you do, you're lifting the color right out of your hair.
Lou Birkett, a hair salon co-founder, also told the outlet that although peeing in the shower would save water, it's best to err on the side of caution. You won't create mustard gas, but you could harm your skin with bleach, which is an irritant. Just rinse your hair out in the sink.
Generally, it's safe to re-dye every 6 to 8 weeks. Permanent hair dye lightens the hair and deposits color.