This study found that the Leni wand device, which combines cold and vibration, was more effective at reducing pain from local anesthesia injections during hair transplant surgery than a device using only vibration, although results were obtained solely from a male participant group.
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May 2013 in “Supportive Care in Cancer” Scalp cooling significantly reduces hair loss in chemotherapy patients.
November 2017 in “International journal of family & community medicine” This case report observed that hypogonadism and cold sensation resolved in a patient after discontinuing 5-alpha-reductase inhibitors, suggesting these medications may contribute to such symptoms.
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February 2024 in “Journal of Modern Oncology” This study found that scalp hypothermia effectively prevented chemotherapy-induced alopecia in 57.3% of breast cancer patients, with side effects such as a feeling of cold and slight headaches reported in 16% of cases.
September 2019 in “Reactions Weekly” Man experienced post-finasteride syndrome symptoms after using finasteride and dutasteride for hair loss.