1. haidut

    Theanine May Be Better Than PCPA For Reducing Serotonin

    The compound pCPA works by inhibiting the synthesis of serotonin in the brain. Ray has written that theanine also reduces serotonin in brain but it was not known how. This study claims that theanine may actually work better than pCPA by BOTH inhibiting serotonin synthesis and also increasing its...
  2. haidut

    Caffeine acts similarly to pCPA in the brain

    In case anybody needed a pCPA substitute, this study claims that chronic caffeine ingestion will have a similar effect. http://www.ncbi.nlm.nih.gov/pubmed/7475912 "...The findings are discussed as repeated caffeine administration producing adaptive changes in the serotonergic neurons to...
  3. haidut

    Affordable Source Of Pcpa (fenclonine)

    Hi all, There has been a lot of interest from members of this forum (including myself) to get our hands on the legendary substance pCPA (p-cholorophenyalanine), which will selectively and potently inhibit tryptophan hydroxylase and thus lower serotonin. Ray has written about its effects on...