Hair Straightening Procedures Linked to Kidney Damage in Israel

Multiple cases of acute kidney damage have been reported in Israel following hair straightening procedures, prompting warnings from medical professionals about the potential risks. The issue gained prominence after a 14-year-old girl was hospitalized with acute kidney failure after undergoing such a treatment. Her parents claim the product used was approved by the Ministry of Health, yet she developed severe symptoms hours later.

Investigating these incidents, along with dozens of similar cases in recent years, has pointed to glyoxylic acid as a potential culprit. Dr. Ofir Lavon, head of clinical pharmacology and toxicology at Carmel Medical Center, explained that glyoxylic acid can lead to the formation of oxalate crystals in the kidneys, impairing their function. Kidney biopsies in some affected women have confirmed the presence of these crystals.

Dr. Yael Borovitz, a senior nephrologist at Schneider Children's Medical Center, noted that parents initially helped identify the link by providing product packaging and ingredient lists. Some products used were found to be unauthorized. Even when products are claimed to be approved and free of glyoxylic acid, Borovitz questions the accuracy of such assurances, suggesting that the actual product composition might differ from the label.

In August, the Ministry of Health had already flagged several hair products found at "Hair Straightening Center" branches for not being registered in its databases. Some products contained glyoxylic acid, while others raised concerns about their origin and safety. Formaldehyde, a banned carcinogen, was also found in some improperly labeled straightening products.

Medical experts advise consumers to minimize scalp contact with products, ask to see packaging and ingredient lists, and be aware of the risks associated with glyoxylic acid and formaldehyde. They emphasize that "approved" does not guarantee safety, as cosmetic ingredients can be potentially toxic depending on dosage and application. If any adverse symptoms like nausea or difficulty breathing occur post-procedure, immediate medical attention is crucial, and informing doctors about the hair treatment is vital for diagnosis and treatment.