oxytocin 95%

dopamine 85%

serotonin 85%

beta-endorphin 85%

met-enkephalin 80%

leu-enkephalin 80%

anandamide 80%

gaba 75%

alpha-endorphin 70%

gamma-endorphin 70%

norepinephrine 65%

melatonin 60%

beta-neoendorphin 50%

alpha-neoendorphin 40%

dynorphin a (1-17) 35%

dynorphin a (1-13) 35%

dynorphin b 35%