Amino acids, often referred to as the building blocks of proteins, are compounds that play many critical roles in your body. They’re needed for vital processes like the building of proteins and synthesis of hormones and neurotransmitters. Some may also be taken in supplement form for a natural way to boost athletic performance or improve mood. They’re categorized as essential, conditionally essential...
The net-net is most things taken sublingually work faster. It also means you can usually take less because the supplement is more potent.
Research has shown that VERY small (and I mean small!) compounds are, in fact, able to pass through the BBB…things like certain medications and hormones. Also alcohol and drugs like cocaine are able to pass through the BBB.