Woman applying dye to a woman
June 9th, 2025

Dying your hair causes alopecia: Truth or myth?

Dyes are safe and effective, but it is true that they can have certain consequences on the hair. This is why it is common for doubts to arise among people who decide to dye their hair frequently about the impact on their hair. One of them is the possible relationship of these chemicals with baldness: Is it true that dyeing your hair causes alopecia?

La alopecia It is a disease that affects a high percentage of the population, and this is indicated by the rate of alopecia in Spain. Could this high number of cases of alopecia, especially in women, be associated with the recurrent use of dyes? Could dyeing your hair be considered to cause alopecia? In Hospital Capilar, experts in hair grafting in Madrid, Murcia and Pontevedra, we tell you everything you need to know about hair dyes.

How do dyes affect hair?

As we have previously mentioned, dyes do not pose a serious problem for hair health since they meet the requirements and specifications of the authorities of our country. Ultimately, they are safe and effective. However, it is true that the chemicals used have an impact on the hair, especially in cases where discolorations. This is why more and more often dyes that contain natural ingredients are chosen, precisely to minimize hair damage.

To know if dyeing your hair causes alopecia, it is essential to understand how these products act on the hair. He medical team of Hospital Capilar indicates that dyes can affect the hair structure, but not directly to hair follicles, so the most common symptoms are hair dehydration, increased frizz or, in some cases, loss of volume. This is because the pH of the hair fiber can be altered, so its texture changes, but in no case does this cause sudden hair loss. Of course, it will depend on the type of dye used, since those with ammonia and peroxide are more harmful than those that are more natural and do not contain high levels of these chemical compounds.

Does dyeing your hair cause alopecia?

It is not true that dyeing your hair causes alopecia, since this disease is motivated by other types of factors, mainly hormonal and genetic. Nor should it cause an increase in hair loss, since the dyes do not intervene in the proper functioning of the hair follicles. Of course, misuse of these chemicals can cause more serious problems since they are in contact with the scalp, such as infections, dermatitis, flaking and even hair loss.

In short, it cannot be said that dyeing your hair causes alopecia. What can happen is that the hair weakens, becoming more brittle, but the hair follicle is not affected, so alopecia does not develop, where the follicular unit does detach. 

Recommendations to minimize the impact of hair dyes

To reduce possible damage to the hair when using dyes, it is important to take into account several issues.

Choose more natural dyes

If we decide to dye ourselves at home, it is important that we pay attention to the type of dye that we buy. It is preferable to choose those with less percentage of ammonia and peroxide, and with ingredients of natural origin.

Go to your trusted hairdresser

In case you don't have much idea about how to apply the dyes, it is better to have an expert color professional do it for you.

Use nourishing hair masks

To prevent hair from drying out excessively, it is highly recommended to use nourishing masks or serums. In this way we will obtain more nourished, shiny and silky hair.

My hair is falling out: what should I do?

In case of noticing an unusual hair loss that accompanies areas without hair or lack of density, it is important to know how to act since we could be facing some type of alopecia.

Go to a specialized hair clinic

Receiving a personalized medical diagnosis is essential to know how we should proceed to stop the progression of alopecia. In Hospital Capilar You have your diagnosis at no cost from an expert medical team in hair medicine.

Adapted hair treatments

In case the medical equipment, we can resort to hair treatments with which to stop the advance of alopecia, stimulate hair growth and improve the general condition of the scalp.

Hair graft with FUE technique

When the alopecia has already advanced and we have areas without hair such as the entrance or the crown, we can only recover the hair in those areas with the FUE hair transplant. The hair treatments mentioned above stabilize alopecia, but in no case will they cause hair to grow where the follicular units have already detached.

The results of the hair implant are natural and do not leave visible scars. These are given a year after the intervention, although it is true that at 6 months the first changes can already be seen. To know if we are suitable to undergo a hair transplant, it is essential to have a capillary analysis previo.

Hair mesotherapy treatment

Stops hair loss and restores its vitality

A timely diagnosis is essential to stop the progress of a possible alopecia. In Hospital Capilar You will find an experienced medical team that will respond to your needs and resolve all your doubts. Request your diagnosis at no cost!

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