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Measuring serum B12 concentration A medical specialist received a letter stating, you have treated people with normal serum B12 concentrations with B12 injections, for which there is no proof

The peptide market is, frankly, a minefield of under-dosed, impure, and unstable products

Monitoring and adjusting supplementation Test b12 levels every 6 to 12 months during semaglutide use

Injections should be administered following clinical assessment, and long-term or repeated use should be medically guided

As an example, we used the common chemotherapeutic drug Doxorubicin, which can indeed induce senescence (Cahu et al., 2012