1. Shampooing the day after you dye your hair
After having your hair colored, wait a full 72 hours before shampooing. It takes up to three days for the cuticle layer to fully close, which traps the color molecule, allowing for longer lasting hair color.
2. Washing your hair too often
“Color’s worst enemy is water,” – The chemicals in hair dye make your hair more vulnerable to water’s effects. This doesn’t mean you need to stop taking showers — just make simple tweaks to your routine, like avoiding excessive rinsing: Once you’ve shampooed and conditioned, don’t tilt your head back and let the water just run over it for several minutes. Instead of shampooing your hair every day, try using a dry shampoo at the roots to soak up oil.
3. Rinsing with hot (or warm) water
Adjust your water temperature to lukewarm or cold when rinsing. Hot water lifts the outer cuticle layer, which is one of the most common reasons that color fades. The hotter the water, the quicker the color loss.
4. Not using a conditioner for color-treated hair
Dyed hair is more likely to become dry and brittle, so treat it often with conditioners specifically formulated for color-treated hair. It helps create a protective barrier, which can prevent your dye from quickly washing out.
Make sure to condition every time you shampoo, even if you have fine hair. You really want to make sure you condition the longest part of your hair. The tips can be years old and have the most damage, whereas the roots are only a couple of months old. Try using a leave-in conditioner for even more of a moisture boost.
5. Drying roughly with a towel
Scrubbing too hard can fade color and make the ends look dry. Instead, gently blot your hair and let it air dry as much as possible.
6. Overusing your curling iron, flat iron, or blow-dryer
Colored hair is more vulnerable to heat. To keep from frying out your hair, apply a heat protectant spray before using tools like your curling iron.
7. Forgetting the glossy factor
Your hair may be a gorgeous new color, but has it lost its shine? Your hair’s protein layers (cuticles) reflect light and cause it to shine, but dye dulls this luster. To get that shine back, use an overnight hair repair treatment, spray-on gloss with a serum, shine spray, or an at-home glaze. And, again, cut back on the heat tools.
8. Over-exposing your hair to the sun
If you plan on spending lots of time in the sun, wear a hat to keep your hair color from fading or lightening.
9. Re-dyeing unevenly
When it’s time for a touch up, carefully apply the color on the roots only. Then, just before you rinse out the color, emulsify the hair, which will revive the color on the ends and add body and shine.