Which is more harmful to hair, perm or hair dyeing?

Hair dyeing is more harmful.

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.

First of all, neither is good and will damage the hair. Perm is a physical injury, dyeing is a chemical injury;

Perming your hair may deteriorate your hair, leading to dryness, yellowing, and even hair loss! Coloring hair may cause hair necrosis, split ends, yellowing, etc.

Comparatively speaking, it should be more harmful to dye, and it is best not to dye hair more than twice a year, because it has been reported before that hair dye contains a substance that may cause cancer! Therefore, try to avoid dyeing or less dyeing, and pregnant women should not use hair dye, which is absolutely forbidden!

The damage of perm is smaller, because when perming hair, you need to take the No. 2 potion, which is the styling (reduction) potion, and the hair dye does not.

At the same time, it is very important to choose a potion, if the dyeing method is a plant-based dye, it will hurt a little less

Which hurts the most perm or hair color? Fortunately, I knew it in time, so don't take it seriously.

First of all, throw the comb away! Only with claws later!

Secondly, it is necessary to buy elastin. The barber said that there is no need to shape the products, they are all P words...

Finally, if possible, use your hands to curl your hair when blowing and then blow it.

Perming and dyeing hair can damage the hair.

The main ingredient of the first agent of perm water is ammonia, the purpose of using ammonia is to open the hair cuticle, which is conducive to the penetration and absorption of the main agent thiothio, and to achieve the effect of cutting off the disulfide bond in the hair.

The main ingredient of hair dye is also ammonia, which mainly plays a role in opening the hair cuticle in the process of dyeing hair, but the alkalinity of ammonia is very strong, and excessive use will lead to loose hair structure, hair cuticle loss, nutrient loss, and hair quality becoming dry and brittle. The main ingredient of hydrogen peroxide milk for hair dye is hydrogen peroxide, the intensity of action is different, and the oxidation effect on hair is also different.

The frequency of perms is low, and the degree of damage is manageable

The frequency of perming hair is relatively low, under normal circumstances, it is permed once or twice a year, which basically does not have a great impact on hair quality. The frequency of short hair perms is about three to four times, but the frequency of hair cutting is higher, and the damaged hair will be cut off, so the damage to the hair quality is controllable.

There are many types of perms, and many of the popular hairstyles only need to be permed, which does not have much impact on the overall hair quality. Coupled with the continuous improvement of perm technology and products, as long as the operation is done properly, the control of the potion is accurate, and there is almost no big difference between the hair quality after the perm and before the perm.

However, perming the curls of the hair is more damaging than the hairstyle with only the ends of the hair. But it is also controllable, because the impact of perm on hair quality is mainly softening and temperature, as long as the softening is controlled just right, and the temperature is controlled according to the hair quality, the impact on hair quality is almost negligible.

Hair dyeing is more frequent, and the degree of damage is much greater than that of perm

Perming can only perm the ends of the hair, but the hair dyeing must be dyed from the roots to the ends, and the process itself is much more damaging than the perm. In addition, the frequency of hair dyeing is higher, because after dyeing, the hair will grow black new hair, and the color that has been dyed before will also fade, so that two or more color differences will be formed, and the hair color can only be unified by dyeing, so the frequency of hair dyeing is much higher than that of perms.

Under normal circumstances, in order to maintain the uniformity of hair color, you have to dye your hair at least three or four times a year, and you have to dye your hair all over your head every time, so the damage of dyeing your hair is much greater than that of perming your hair. Even if the roots of the perm grow new hair, it will not have much impact if it is not permed, and it can be tied up or coiled up, but dyed hair is different, and the two colors are clear at a glance and cannot be hidden.

Hair coloring

Hair dye is 7 times more harmful to hair than perm, and hair dyeing is much more harmful than perm, and if it is a bad hair dye, it will hurt even more. Long-term hair dyeing can lead to leukemia, or some blood disorders.

Perm hair dyeing is very damaging to the hair, just like the human body, no nutrition is very easy to get sick, hair after perming and dyeing, missing most of the nutrients, so it becomes fragile, but you can often go to the barber shop to maintain the hair, you can also use the repaired hair mask cream, wipe it every time you wash your hair and wait for half an hour before washing it off, so that the hair absorbs nutrients, the hair quality will become better, and you can usually eat more walnuts, black sesame seeds and other foods.

Hair dyeing and perming are more damaging than hair dyeing.

When dyeing hair, the lighter the dyeing color, the greater the impact on the hair quality, because the lighter the dyeing, the more processes are required, the more alkaline the dye paste is, and the concentration and frequency of hydrogen peroxide are also more, so the degree of damage to the hair is much greater than that of dyeing the dark color.

For example, dyeing a high-brightness hair color like grandma gray, the process of dyeing hair is more complicated, and it needs to fade the old color and then dye it in order to dye a very pure hair color. But this process of dyeing hair is very damaging to the hair quality. Dyeing darker hair colors is much simpler, the concentration of hydrogen oxygen is low, and the alkalinity of the dye paste is low, which has a much smaller impact on hair quality and filial piety.

Precautions for hair coloring:

1. When buying hair dye, you should pay attention to understanding the ingredients of hair dye, if you dye your own hair, you should operate according to the instructions containing the license, and you must not use it if you are allergic to a certain type of ingredient. It's best to buy a product that you have used before and have no problems.

2. Do not pursue better "color fixation" and prolong the hair dyeing time without permission, please use it according to the instructions of the product, and pay attention to wearing gloves when mixing hair dye.

3. Try to dye as little as possible, especially for some women whose hair has turned gray, don't see it white, and you have to tinker with it at both ends in three days. It is best not to use hair dyes more than 2-3 times a year, and do not mix different brands of hair dyes together when dyeing your hair, because the recipes are different.

Hair dyeing is more harmful than dyeing hair.

When perming and dyeing hair, you need to apply some chemicals on your hair, and it will also penetrate into the **, so that it will be absorbed by the human body.

However, when dyeing hair, it is not only necessary to apply a potion, but also to use hair dye, which has more carcinogens, so perming and dyeing hair will be more harmful to the body than hair dyeing. In order to avoid affecting personal health, try to avoid dyeing and perming your hair.

Precautions for hair coloring:

1. Do an allergy test

For people who are prone to allergies, especially for the first time to dye their hair, it is necessary to go to the hospital for an allergy test or patch test before dyeing their hair.

2. Choose the right hair dye

The hair dyes on the market are uneven, and when choosing, you must choose regular and safe high-quality hair dyes through formal channels, and don't use three-no products for a small price. And, when choosing, be sure to carefully see whether the product meets the national standard, and the maximum concentration of PPD (p-phenylenediamine) in hair dye cannot exceed 6.

For hair dyes who need to be insured for a short time, it is best to choose a pure plant-derived hair dye, but the long-lasting effect of this buried hair dye may not be very good.

3. Take protective measures before dyeing your hair

Don't wash your hair for a week before dyeing your hair, as the oil secreted by your scalp every day is a natural protective barrier that can form a resistance to some harmful ingredients in hair dye.