Greasy hair is the recommended hair condition for bleaching, as your hair's natural oils are well-equipped to resist the bleaching process, and protect the scalp from chemical damage. We recommend bleaching hair at least 72 hours post-hair wash for ultimate protection.
Using moisturizing shampoos, conditioners, and treatments before the appointment will help hair get into the best possible condition, which is necessary.
It's generally recommended to use box dye on clean, dry hair. This ensures oils, products, or dirt do not interfere. Washing hair 24 to 48 hours before dyeing is ideal. This allows the scalp to produce natural oils. Natural oils help protect it during the dyeing process.
No. It's best to avoid washing at least 24 hours before dyeing. However, if your hair is really dirty, has a lot of product in it, or you need to shampoo for a special occasion, you can do that – as long as it's a one-off, you shouldn't see any long-term negative effects.
"The natural oils from a semi dirty scalp will protect you from the hair color applied directly to the scalp," she explains, "and highlights start at the scalp, so it really is best to wash your hair in order to get the best coloring experience."
Here are some guidelines to prep your hair for a perfect color service. 1. Wash your hair 12 to 24 hours before your color. This will assure the hair is clean, but allow the oil in your scalp to create a protective barrier against irritation and staining.
Along with washing your hair right before dyeing it, avoid applying any styling products, like dry shampoo or leave-in conditioners.
Stylists advise that bleach does not need to go on clean hair, and that it's actually healthier for your hair to be a little oily when you bleach. In fact, the oils in your hair help to protect your scalp during the bleaching process. So, however tempting it may be, do not wash your hair before getting it bleached!
If your hair is very oily, wash it the day before coloring for best results. If you have normal or dry hair, wash 48-72 hours before you plan to color. The best base to apply hair color are strands with enough natural oil to keep them moisturized and protected, but not so much that it affects the results.
Don't Overprocess
Using too high percent of developer will cause the hair color to lift too fast causing damage to the hair cuticle,” says Faye. Rez adds that leaving the bleach on too long—even with a lower volume processor—can also contribute to damage.
The easiest way to lighten hair is to use a clarifying shampoo or a mixture of baking soda and lemon juice. These methods are gentle and can gradually lighten the hair over a few washes. For more immediate results, a professional toner or hair lightener can be used.
If you're applying bleach to wet hair, keep in mind that the color of your strands won't lift as much as it would if applied to dry hair. This is because the water on your hair will dilute the bleach, resulting in softer results. For a subtle color change, your colorist may use bleach on wet hair.
By removing product buildup, hardened sebum on the scalp, and excess oil, clarifying shampoos actually help the color or bleach penetrate the strands better, as these impurities leave a film that functions as a barrier.
If your hair is healthy, meaning it's not fragile and damaged, technically, you can dye it when wet. However, we recommend coloring hair when dry so you achieve a look that aligns with your desired results.
Coconut oil, with its rich fatty acids, might coat the hair and potentially minimize some of the damage caused by the bleaching process. Here's a caveat: the science on this is not entirely conclusive. Some hairdressers swear by it, while others recommend other treatments.
Greasy hair is the recommended hair condition for bleaching, as your hair's natural oils are well-equipped to resist the bleaching process, and protect the scalp from chemical damage. We recommend bleaching hair at least 72 hours post-hair wash for ultimate protection.
As we've mentioned, you should wash your hair two days before you have it bleached. This is so that all those lovely natural oils that your scalp produces are still coating the strands of your hair, protecting it from the effects of the bleach.
**Even Application**: Clean hair ensures that there is no buildup of products like hairspray, gel, or dry shampoo, which can create a barrier that prevents the color from being applied evenly. If there is too much buildup, it can lead to patchy or uneven coloring.
While your hair should be clean for all hair coloring services, how clean may depend on the color you're going for. In most cases, having freshly washed strands is ideal—as Moore says, “hair color needs the path of least resistance” for the most seamless end results.
Moisturize, Moisturize, Moisturize. Bleaching hair is an extremely drying process, so it's important to infuse as much moisture into your hair ahead of time as possible. If your hair is already dry, brittle and weak, bleaching is likely not a good idea. Most hair professionals won't bleach damaged hair.
Arrive to your hair salon appointment with freshly washed, product-free hair. This allows the color to be applied evenly for the best results. Avoid using conditioner or styling products before your visit. The cleaner your hair, the better the color will deposit and stick.
“Hair should almost always be somewhat clean and dry—meaning no dry shampoo, no styling products, and no excessive oils, although a little natural oil is fine," Perkins says. Remember, bleach is notorious for ruining fabrics—so choose what you wear wisely. “Remove your bathroom rugs to ensure nothing drips.
Post-color washing is essential for maintaining the structural integrity of your hair. By cleansing and conditioning, salons help in closing the hair cuticles, locking in moisture, and preserving the smoothness of your locks.
The answer to this question is generally no. You should avoid washing and conditioning your hair immediately before coloring. Hair color tends to adhere better to hair that is not too clean or soft, and the natural oils in your hair can help protect your scalp during the coloring process.