echemi logo
  • Product
  • Supplier
  • Inquiry
    Home > Active Ingredient News > Antitumor Therapy > BMJ: Use of hair dyes in women and risk assessment of tumors.

    BMJ: Use of hair dyes in women and risk assessment of tumors.

    • Last Update: 2020-09-24
    • Source: Internet
    • Author: User
    Search more information of high quality chemicals, good prices and reliable suppliers, visit
    Researchers recently assessed the relationship between hair dye use and tumor risk and mortality.
    The Nurses' Health Study included 117,200 female participants who reported no tumors during baseline testing, and over a 36-year follow-up period, participants reported information about individual use of permanent hair dyes, assessing participants' use, duration, frequency, cumulative dosage, age at first use, and so on.
    end of the study was tumor and tumor death.
    The risk of solid cancer other than melanoma skin cancer (n=20805, with a risk ratio of 0.98) or blood system tumours (n=1807;1.00) was not significantly increased compared to participants who never used hair dye.
    In addition, the risk of death from most specific tumors in people who have used hair dyes (including skin squamous cell carcinoma, bladder cancer, melanoma, estrogen-positive breast cancer, progesterone-positive breast cancer, hormone-positive breast cancer, brain cancer, colorectal cancer, kidney cancer, lung cancer and most blood cancers) or cancer-related deaths (n=4860;0.96) has not been significantly increased.
    found a slight increase in the risk of substrate cell carcinoma in people who had used it (n=22560;1.05).
    is also of concern that the cumulative dose of hair dyes is associated with increased risk of estrogen-negative breast cancer, progesterone-negative breast cancer, hormone-neutral breast cancer and ovarian cancer.
    the risk of specific tumors associated with hair dyes was race-related, with an increased risk of Hodgkin's lymphoma after hair dyeing in women with natural black hair (70 female patients, 24 of whom were natural brunettes), while in natural light hair color, the risk of substrate cell carcinoma was higher after hair dyeing.
    study concluded that permanent hair dyes did not increase the risk of most tumor morbidity and death, but that the cumulative dose of hair dyes was associated with an increased risk of substrate cell carcinoma, partial breast cancer and ovarian cancer.
    This article is an English version of an article which is originally in the Chinese language on and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.
    Related Articles

    Contact Us

    The source of this page with content of products and services is from Internet, which doesn't represent Echemi's opinion. If you have any queries, please write to It will be replied within 5 days.

    Moreover, if you find any instances of plagiarism from the page, please send email to with relevant evidence.