Hair Straighteners

The Dangers of Formaldehyde in Hair Straighteners

“Inhaling formaldehyde gas can have immediate adverse effects, including eye and throat irritation, coughing, wheezing, or chest pain. Furthermore, chronic exposure may lead to persistent issues such as frequent headaches, asthma, skin irritation, allergic reactions, and potentially, an increased risk of cancer.”

In a significant move, the Food and Drug Administration (FDA) in the United States is advocating for a prohibition on the use of formaldehyde and substances releasing formaldehyde as ingredients in hair straightening or smoothing products.

Hair Straighteners
Hair Straighteners

Already Under Regulation in the European Union and Canada

Formaldehyde inhalation in straightening products has been strictly regulated in the European Union, with a concentration limit of no more than 0.01% when the product is heated and released as vapor (European Parliament and Council Regulation (EC) No 1223/2009, Annex II). This heightened scrutiny stems from concerns regarding potential respiratory issues and an elevated risk of certain cancers associated with formaldehyde exposure.

According to the FDA’s proposed rule, “Hair straightening products containing formaldehyde and substances releasing formaldehyde can have immediate adverse effects on health, such as allergic reactions and respiratory problems. Additionally, they pose long-term risks, including an increased likelihood of certain cancers.”

Recent Research Highlights Risks, Particularly for Black Women

A study conducted by the National Institutes of Health (NIH) last year found a troubling connection between the use of hair straightening products and an increased risk of uterine cancer. Notably, Black women may be more significantly affected due to higher usage of these products.

Initiating Regulatory Change

The proposed ban represents the initial step in the regulatory process. The FDA is actively seeking public input, and after a thorough review of these comments, the agency will determine the necessity for further action.

In light of these developments, the FDA advises consumers against using hair straightening products containing formaldehyde and similar substances due to potential health risks associated with these chemicals.

Immediate Health Concerns:


Formaldehyde, a potent chemical used in hair straightening products, poses an immediate threat upon contact or inhalation. When exposed to the eyes, throat, or skin, individuals may experience acute irritation. The eyes can become red and watery, the throat may feel sore, and the skin might develop rashes or inflammation.

Respiratory Issues

Inhaling formaldehyde gas is associated with an array of immediate respiratory problems. This includes coughing, a persistent and often painful reflex aimed at expelling irritants from the respiratory tract. Additionally, individuals may experience wheezing, characterized by a high-pitched whistling sound during breathing, and chest pain.


Chronic or Long-Term Effects


Prolonged exposure to formaldehyde extends beyond immediate discomfort, potentially resulting in chronic health issues. One such consequence is an increased frequency of headaches. Individuals regularly exposed to formaldehyde may find themselves grappling with persistent headaches, ranging from mild discomfort to more severe and debilitating pain.


Formaldehyde’s impact extends to individuals with pre-existing respiratory conditions, particularly asthma. Prolonged exposure may trigger or exacerbate asthma symptoms. This includes difficulty breathing, chest tightness, and wheezing. Those with asthma face heightened challenges in managing their condition when subjected to formaldehyde over extended periods.

Skin Irritation

The long-term effects of formaldehyde exposure also manifest in skin-related issues. Continuous contact with this chemical can lead to chronic skin irritation and allergic reactions. Skin may become red, inflamed, and sensitive, with some individuals developing allergic dermatitis.

Carcinogenic Concerns

Cancer Risk

Perhaps the most alarming long-term concern associated with formaldehyde is its classification as a human carcinogen by certain health authorities. Extended and repeated exposure to formaldehyde has been linked to an increased risk of developing certain cancers. This includes but is not limited to nasopharyngeal cancer, leukemia, and other malignancies.

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