are there any fda-approved glp-1 patches Do Really Work? Evidence and Alternatives GLP-1 Patches: Do They Work?

GLP-1RA use was significantly associated with a lower risk of all-cause mortality in this cohort compared to insulin/metformin use

At 0.5mm, a stamped microneedle traverses the stratum corneum (typically 10 to 30 microns), passes through the viable epidermis (50 to 100 microns), and lands in the upper papillary dermis (which begins around 100 to 150 microns deep)

Paediatr Drugs

The MHRA has not issued specific guidance on cagrilintide or retatrutide as neither is currently licensed in the UK

It makes B12 a less likely cause and points you toward the next one, often thyroid function, which causes the same kind of washed-out fatigue