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91% of Hair Extensions Contain Cancer-Causing Chemicals

2/11/2026

24 4 Full Breakdown

Summary

Story summary

A study by the Silent Spring Institute, a health research organization, found that 91% of 43 hair extension samples contained at least one chemical linked to cancer or hormone disruption.
The chemicals include organotins and flame retardants.
Many products claimed to be "non-toxic," signaling gaps in ingredient transparency.
The findings call for regulatory oversight and greater transparency as the industry grows toward $14 billion by 2028.

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Story summary

A study by the Silent Spring Institute, a health research organization, found that 91% of 43 hair extension samples contained at least one chemical linked to cancer or hormone disruption.
The chemicals include organotins and flame retardants.
Many products claimed to be "non-toxic," signaling gaps in ingredient transparency.
The findings call for regulatory oversight and greater transparency as the industry grows toward $14 billion by 2028.