Lee Chang-sub discusses hair loss medication routine and side effects

During a broadcast of the KBS Joy program ‘Kkiri-Kkiri’, BTOB member Lee Chang-sub discussed his proactive approach to hair loss prevention. Despite having thick hair, Lee revealed that he maintains a strict daily routine of taking hair loss medication at the same time every night to preserve his current hair density.

Lee explained that the medication is intended to prevent hair loss rather than regrow hair that has already been lost. He also addressed potential medical side effects associated with such treatments, specifically noting the development of gynecomastia, or enlarged mammary tissue, which can occur in men and may sometimes require surgical intervention to correct.