The injection/oral bioavailability difference for peptides follows a consistent pattern: injections produce faster and higher peak plasma levels, while oral forms have more variability due to GI degradation. BPC-157 is the exception among peptides where oral administration has meaningful research support for gut conditions - for systemic and injury recovery applications, injection remains more predictable. The GLOW injections being faster-acting than the BPC/KPV pill is consistent with that model. The pill tradeoff is convenience and reduced degradation anxiety; the injection tradeoff is precision and absorption rate.