PMID: 17912575
[Innervation of the cerebral epiphysis in albino rats]
I can attest for its effectiveness- honestly once youve done the loading phase for a few weeks, the tan that you get is the best tan youll ever get- I inject once every night for around 2 weeks, go on sunbeds once or twice, and boom
these include acetylcholine, GABA, and glutamate [29]
You won't experience any dangerous withdrawal effects, but the benefits you gained from treatment will slowly diminish
However, chronic stress, whether it is from toxins, poor diet, sleep deprivation, smoking, excess sugar, or other stressors, eventually exhausts glutathione levels