Jees said:
Had rue freebase extract that turned red after a while, but still working.
Now keeping it as HCL form, probably even better.
Funny you say that as there is speculation harmalas oxidize and turn to red in ethanol solutions.
How long do they last in FB, well mine lasts ages in crude powdery plant extract form, didnt change one but as far as I could tell. Seems robust for a normal climate.