HAIR RELAXER GUIDE · SAFETY
Are Hair Relaxers Safe?
Last updated: September 6, 2026
People started asking after a 2022 government study found more uterine cancer among women who used chemical straighteners often. There is no clean yes or no. This page sets out what the research found, which ingredients drew attention, and how to think about your own situation.
This page provides general educational information only and does not constitute medical or legal advice, and it does not recommend or rank specific products. Discuss personal use and any health concern with a qualified medical professional.
- Research found more uterine cancer among frequent users. That is a pattern, not proof.
- What mattered in the studies was how often and how long, not which brand.
- Some products contain chemicals that interfere with hormones.
- This page does not rank products or tell you what to use.
Why People Are Asking
Chemical relaxers and straighteners have been used for decades, mostly by Black women.
The safety question moved to the front in 2022, when researchers at the National Institutes of Health reported that women who used these products frequently were getting uterine cancer at a higher rate than women who did not. That study made the news, and it is why you are here. It is covered in detail on The Hair Relaxer Cancer Studies, Explained.
Safe Is Not a Yes or No
The research describes a pattern: frequent, long-term use went with a higher rate of an uncommon cancer. It does not say any one woman was harmed, and it does not say anyone will be.
At the same time, a pattern found in a large and credible study is worth taking seriously. Both of those are true. That is why a flat safe or unsafe would mislead you either way.
The Ingredients That Drew Attention
Researchers looked at chemicals that interfere with hormones. Certain phthalates. Parabens. Formaldehyde, or preservatives that release it. Bisphenol A.
The cancers being studied are hormone-driven, which is why those ingredients became the focus. Products differ, labels differ, and formulations change, so what was in a product years ago may not be what is in it now.
Why There Is No List of Safe Brands
This is the question people ask next, and this page will not answer it with a ranked list.
The research looked at how often and how long women used these products. It did not test brands one by one and clear some of them. And formulations change, so a list written today would be wrong before long. Reading the current ingredient label and asking a professional about the products you actually use will get you further than anything online.
Your Own Situation
Nothing on this page knows how often you used these products, for how many years, or what else is in your health history. Those are what matter.
If something is worrying you, especially a symptom or a diagnosis, take it to a doctor. For the conditions in the research, see Does Hair Relaxer Cause Cancer? and Hair Relaxers and Fibroids.
If You Have Already Been Diagnosed
That is a medical matter first, and it belongs with your care team. If you also want to understand whether there is a legal side, Hair Relaxer Cancer Lawsuit explains the litigation and who it involves.
Used chemical relaxers for years and later diagnosed with uterine, endometrial, or ovarian cancer? Whether that history fits an existing claim is a separate question from the medical one, and you can have it looked at for free on Lawsuit Center.
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