Rather than acting as an immune stimulant, it performs as a regulator
Note that PA isn't caused by not eating foods that contain B12, but rather by your body's inability to absorb B12
The honest summary is that for any human application, the evidence is insufficient to make a confident recommendation
Individuals targeting specific health goals (like skin aging reversal, muscle recovery, immune support, weight loss or hormone optimization) may benefit
Any form of bodily introduction into humans or animals is strictly prohibited by law
Not FDA-approved or DEA-scheduled Legal to buy and possess for non-human research Banned by WADA due to its performance-enhancing properties Increasingly monitored by customs and health regulators worldwide TB500 Synthetic version of Thymosin Beta4 (a naturally occurring peptide) Not approved by the FDA for human use Legal for research purposes only in the U.S