People use it on the neck because if the neck is exposed to the sun, it gets damaged pretty fast
Discharging a LiPo below 3.0V per cell will cause damage to the pack and can be dangerous, as can charging to higher than 4.2V unless you have a specialised HV (high voltage) pack
Garca-Carro C, Vergara A, Bermejo S, Azancot M, Sellars J, Soler M
[15] Hence, the title of the study we've been discussing, "Berberine is associated with protection of colon enterocytes from mitochondrial overheating"
Why Proper Reconstitution Matters Accurate peptide preparation ensures reliable experimental results, consistent concentrations, reduced contamination risk, and longer peptide stability