Abstract
Hair is an aesthetic component of important cultural significance and closely related to beauty standards. Therefore, the use of hair products such as dyes and relaxers has been valued as part of personal care and has a high relationship with women's self-esteem since ancient times. However, there has been growing concern about the possible adverse effects of its use on women's health, especially due to its recent relationship with the development of several types of cancer including breast, bladder, uterine and leukemia cancer. These products contain chemicals such as aromatic aminases and other potentially carcinogenic compounds that can interact with estrogen receptors and alter hormonal balance. Higher rates of cancer have been observed in African American women, due to increased use of hair products containing active hormonal compounds and a combination of risk factors such as obesity and older age at the time of menarche.

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