Have you tried Sarcosine then? So Sarcosine is like a methylated form of Glycine in that it crosses the blood brain barrier? Kinda like methamphetamine is a methylated form of the amphetamine varieties (dextroamphetamine, levoamphetamine, etc.). Is that what Sarcosine is?
Any opinions on DMG (dimethylglycine)?
Here’s some info about Glycine though:
NOW Supplements Glycine 1000 mg
“Glycine is the smallest and simplest amino acid, making it versatile for use in a wide range of functions. Glycine is necessary for the production of glutathione, DNA, creatine, bile, hemoglobin, and most proteins. It also helps to promote glycogen storage, thereby making glucose readily available for energy production. Glycine also functions as a calming neurotransmitter in the brain, where it facilitates nerve impulses and is important for the maintenance of healthy sleep patterns.”