Guns, I use melatonin, gaba and 500 mg of magnesium. Gaba also encourages the body to produce GH. It also helps calm my mind for sleep. 5 grams ED in an empty stomach before bed with mag and melatonin.

"Results: At rest, GABA ingestion elevated both irGH and ifGH compared with placebo. Specifically, peak concentrations of both hormones were elevated by about 400%, and the area under the curve (AUC) was elevated by about 375%"

Growth hormone isoform responses to GABA ingestion at rest and after exercise - PubMed