State litigation guide · Washington

Hair Relaxer Cancer Lawsuits in Washington

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Statute of limitations — Washington

Washington: 3 years from diagnosis or discovery (RCW § 7.72.060)

3 years from diagnosis

Washington data

Exposure in Washington

Washington offers a 3-year product liability statute — more generous than the 2-year standard

3-year SOL

Source: RCW § 7.72.060

Hair relaxers contain estrogen-mimicking phthalates and parabens that promote growth in hormone-sensitive tissues

Phthalates and parabens

Source: James-Todd et al., Environmental Research 2018

Medical resources

Clinics & Specialists in Washington

Fred Hutchinson Cancer Center — Gynecologic Oncology

FAQ

Frequently Asked Questions

36 QUESTIONS

Chemical hair relaxers contain endocrine-disrupting chemicals (EDCs) — phthalates, parabens, formaldehyde, BPA, and cyclosiloxanes — that mimic estrogen when absorbed through the scalp. Chronic estrogen overstimulation promotes abnormal growth in hormone-sensitive tissues. The NIH Sister Study found that frequent relaxer users face a 155% increased risk of uterine cancer and a 119% increased risk of ovarian cancer.

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