That does not mean lower doses can't work
When Kainic acid (5 nM) is injected into the neostriatum, substantia nigra, or cerebellum, over half of the compound disappears from the injection site and brain within 0.5 hours, with radioactivity detected in other brain regions at concentrations below 7 pM/mg tissue [3] [4] [6]
At the same time, drugs also have a certain degree of side effects, such as the development of drug resistance, as well as adverse reactions to gastrointestinal symptoms, neurological and psychiatric symptoms, and other systemic symptoms
If the hair loss is severe, I would then think about an oral medication like oral minoxidil or oral finasteride
That means we can top off the tank but we cant overfill it