What the Study Found
A recent study by Silent Spring Institute, published in Environment & health (February 11), examined 43 hair extension products.
Products tested included synthetic hair, human hair, braiding hair, and eyelash extensions.
Researchers detected 900+ chemicals, but only 169 could be identified.
Over 80% of the chemicals were not listed in scientific safety databases.
Nearly every sample contained at least one chemical linked to cancer.
Around 10% contained organotins (plastic stabilizers) above european safety limits.
🚨 Major health Concerns
Chemicals found include organotins, phthalates, styrene, and acrylonitrile.
Linked health risks:
Skin and scalp irritation
Itching, rashes, and allergic reactions
Hormonal imbalance
Increased cancer risk
Fertility issues and uterine fibroids
Early puberty in children
Obesity and nervous system effects
Endocrine-disrupting chemicals may worsen fibroid risk, especially in frequently exposed users.
👩🏾 Who Is Most Affected?
The report highlights higher usage among Black women.
Over 70% wear hair extensions at least once a year.
Many keep extensions installed for weeks, increasing long-term chemical exposure.
Uterine fibroids are already more common in Black women, raising additional concern.
🔥 Heat Styling Risks
Using hot water or heat tools on extensions can release toxic gases.
Short-term effects:
Eye, nose, and throat irritation
Headaches
Long-term exposure may contribute to serious illnesses.
🏭 industry Safety Gaps
Beauty industry regulations for hair extensions are limited.
Many brands do not fully disclose chemical ingredients.
Consumers may unknowingly face repeated exposure.
✅ Safer Choices
Two tested products showed no harmful chemicals (often more expensive).
Washing extensions with apple cider vinegar may reduce surface chemicals, but safety is not guaranteed.
Experts advise:
Limit frequent use
Avoid excessive heat styling.
Demand ingredient transparency from companies
Choose safer, certified alternatives when possible.
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