What damage does dyeing hair do to the scalp

The oils protect the scalp from infection, and the oils and dirt on the hair do not affect the color in the slightest. On the contrary, if you wash your hair before dyeing your hair, or even scratch your scalp with your nails, it will easily cause allergies to the head, and even lead to other diseases in severe cases. The so-called imported high-quality hair dye is just to reduce the damage rate to the hair, but the damage still exists.

We saw that in the project of the hair salon, there is a local oil care hair dyeing, which is actually simply hair dyeing, and there is no care at all. Freshly washed hair, the sweat pores on the head are open, and the surface is not protected without any protection. No matter how good the hair dye is, it will inevitably make you allergic.

Experts point out that most hair dyes are complex chemical agents that can cause irritation and even potentially life-threatening hazards when used incorrectly. Improper selection or use of hair dye will not only cause allergies, hair changes or loss, but also cause damage to liver and kidney function due to the absorption of toxic substances by the scalp.

The harmful substances in hair dye can penetrate deep into the scalp, damage the hair roots, and cause harm to the body.

Secondary amines are easy to react with epoxy, aldehydes and acid gases, etc., and can be used as a dye fixative to stabilize the adhesion effect of dyes. It can penetrate ** and hair, stay there for weeks, months, or even years, and react with tobacco smoke or exhaust gases in the air to form nitrosamines, a strong carcinogenic chemical.

Hair dye also contains heavy metal salts, once it enters the human body, it is difficult to excrete from the body, and it accumulates in the body for a long time, which will cause poisoning, making people dizzy, headache, fatigue, numbness of limbs and other poisoning symptoms, and may enter the liver, kidney and brain, destroying the function of these organs.

Experts advise that it is best not to dye your hair. If you must dye your hair, dye your hair at least 3 months apart, and it's best to go to a professional barber shop to dye it. Don't bake oil a week before dyeing your hair, don't wash your hair on the day of hair dyeing, the oil secreted by the scalp has a protective effect; If there are wounds or ulcers on the scalp, it is not advisable to dye your hair; 48 hours before dyeing hair, you should do a sensitivity test; Before dyeing, you can apply lotion or petroleum jelly to the hairline and behind the ears to prevent the hair dye from being damaged by **, and if there is a slight adverse reaction on the scalp during hair dyeing, it should be stopped immediately.

If you stay in a smoky environment for a long time after dyeing your hair, you should wash your hair frequently to remove harmful substances adsorbed on your hair in time. It is best to wear a hat when traveling on smog days, and take off your coat immediately after entering the house to reduce the harm of outdoor dirty air to your body.

Definitely, many people will have allergies if they can't dye their hair. And dyeing and perming hair up to twice a year is not only bad for the hair, but also bad for the scalp. Many people are reluctant to spend expensive money on hair dyeing and perming, and ordinary and cheap ones will definitely be bad for the scalp, and often this will also damage the hair, dry and dry.

So try to keep the original wow.

Hair dyeing is harmful to the body regardless of whether it dye the scalp or not, and it is difficult to dye the hair without dyeing the scalp, no matter how high the technique, the scalp will never be spotless, there will always be some dyed next to the sideburns. Therefore, remember not to wash your hair before dyeing it, because the oil secreted by the scalp not only protects the scalp, but also avoids accidental scratches during the shampooing process. Remember to do more hair care after dyeing your hair, which will reduce the damage to your hair.

Generally speaking, perm hair is a little lighter than hair dyeing to damage the hair quality, but it is not absolute, and it has a lot to do with the method of perming and dyeing. For example, if the hair is only treated at the ends of the perm, the damage to the hair is minimal. However, if you choose a full perm from the root to the end of the hair, then it will cause damage to the whole hair, and if the perm is overused, then the damage will be more serious.

The damage of hair dyeing to the hair is also mainly from the chemical components in the hair dye, and girls who often dye their hair should know that when dyeing their hair, the lighter the color, the more process is required, and the more troublesome it is, and the more serious the damage to the hair, just like dyeing gray-white This highly transparent color, the steps are very cumbersome, and it needs to be constantly faded and dyed in order to dye this high-purity hue.

So how to reduce or even avoid the damage to hair quality caused by perm and dyeing? The easiest way is to dye your hair without perms, and the natural state of long black hair is also very attractive. And if you really need it, it is best to perm your hair two or three times a year, and no more than four times a year, and the interval between them should not be too close.

Another thing is to learn to take some simple care of your hair, such as a simple massage of the surface of the scalp when washing your hair, a hair mask once a week, not too many times to wash your hair, and pay attention to the use of conditioner after shampooing.

Like some simple hairstyles or styling adjustments, try not to go to the barber shop to get your hair fixed. Just like many girls like curly hair, you can achieve it yourself through some simple tools. Like a curling iron, you can achieve a good curling effect by curling your hair every few days, and this physical curling method has much less damage to the hair quality.

Hair dyeing and perming are both damaging to the scalp, and if you have to compare, dyeing hair is even more harmful.

Because of hair dyeing, barbers wear gloves on their hands when dyeing their hair. In fact, this is a hair dye cream that has a lot of chemical ingredients, in fact, this hair dye cream is very harmful to the body. If this kind of thing gets into the body, it will affect the body.