Not yet. Pretty sure i have both FP and Valerian as dried plant but probably too old now so will proly need to get some more.
Non-vapable (no gas phase) but interesting in this regard is theanine (an amino acid found in tea):
Able to cross the
blood-brain barrier, theanine has
psychoactive properties.
[5] Theanine has been shown to reduce mental and physical
stress[6], and improves cognition and mood in a synergistic manner with
caffeine.
[7]
While structurally related to the excitatory neurotransmitter glutamate, theanine only has weak affinity for the glutamate receptor on post-synaptic cells.
[8] Rather, its primary effect seems to increase the overall level of the brain inhibitory transmitter
GABA. Theanine also increases brain
dopamine levels and has micromolar affinities for
AMPA,
kainate and
NMDA receptors.
[9] Its effect on
serotonin is still a matter of debate in the scientific community, with studies showing increases and decreases in brain serotonin levels using similar experimental protocols.
[10][11] It has also been found that injecting spontaneously hypertensive mice with theanine significantly lowered levels of
5-hydroxyindoles in the brain.
[12] Researchers also speculate that it may inhibit
glutamic acid excitotoxicity.
[9] Theanine also promotes
alpha wave production in the brain.
[5]
Studies on test rats have shown that even repeated, extremely high doses of theanine cause little to no harmful psychological or physical effects.
[13] Theanine showed neuroprotective effects in one rat study.
[14]
Several beverage manufacturers are selling drinks containing theanine and are marketing them as drinks that help people focus and concentrate,
[15] while other manufacturers claim relaxing and tranquillizing properties.
[16] --
Theanine - Wikipedia, the free encyclopedia
I like the idea that something could be relaxing without being sedating and (perhaps thereby) also able to increase focus at the same time. Theanine sorta suggests that there might exist such botanicals.