Thanks for that. The good thing about this is that Valproic Acid is already FDA approved, and it’s legal for doctors to prescribe it off-label, for indications other than epilepsy. So, they could conceivably prescribe it for hair loss.
Also, the side effects don’t look too bad. There is nothing like cancer on this list. And presumably, injecting it into the scalp, rather than taking it as a pill, or having it injected into a vein, would not expose you to severe side effects.
The potential downside is, how many scalp injections do you need to start growing hair? How frequent do the injections have to be? If you stop the injections, will the follicles miniaturize again, and in how long? Can hair grown with valproic acid be maintained using other drugs?