• 4-amino-3-phenylbutyric acid crosses the blood brain barrier and binds GABA-B receptors*1
• GABA is associated with mood and anxiousness*2
• 5-HTP is a precursor to serotonin*3
• Serotonin is associated with mood and sleep*4
• Melatonin is important for the regulation of the sleep-wake cycle*5
1. Lapin 2001.
2. Kalueff and Allan 2007.
3. Li et al. 2013.
4. Ursin 2002; Dell-Osso et al. 2016.
5. Brown 1994.
