Is the peninsula electric laser hair growth instrument reliable? Will there be any side effects?

Compared with taking medicine, there are side effects. Hair transplantation is expensive and traumatic. Pure physical therapy with hair growth instrument has no side effects and is very reliable. For example, the laser hair growth instrument of Peninsula has been certified by NMPA, EU CE and US FDA, which means it has been approved by China, EU and US, and can greatly guarantee the quality. There are sales rights in these areas. I heard that there are many patents added, which are more reliable.