At best, these patches act like supplements with questionable absorption
Renal kallikrein excretion: role of ethnicity, gender, environment, and genetic risk of hypertension
(2018) The Safety and Efficacy of Growth Hormone Secretagogues Mohtashami Z, Singh MK, Salimiaghdam N, Ozgul M, Kenney MC (2022)
Pinchuk I, Kohen R, Stuetz W, Weber D, Franceschi C, Capri M, Hurme M et al (2021) Do low molecular weight antioxidants contribute to the protection against oxidative damage
BPC-157 alone makes sense when: you have an isolated injury (specific tendon, recovering surgical site, gut-lining concerns from NSAID use), or you want to evaluate how BPC-157 affects you before adding another peptide