L-Tyrosine

Summary

500mg daily (morning), cycle 5 days on 2 days off
Increased energy/drive, lower anhedonia
Use after stimulants

pharmacology

Dopamine precursor
Increase thyroid hormone (watch out!)
May increase risk of skin cancer (ref2)

Possibly good to take with L-Tryptophan as it competes with tyrosine for space across BBB, preventing saturation of endothelial cells. L-Tryptophan is also precursor to serotonin

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Related

References

https://www.reddit.com/r/Nootropics/comments/tovmlo/l_tyrosine_has_been_a_godsend_for_me_but_for_how/
https://www.reddit.com/r/Nootropics/comments/afr57a/ltyrosine_one_of_the_most_overlooked_supplements/