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Mller J, Sidler D, Nachbur U, Wastling J, Brunner T, Hemphill A

Sermorelin and tesamorelin both have histories as FDA-approved compounds for specific clinical contexts, while ipamorelin has only ever been studied as a research compound and is not approved for human use

Human-grade peptides are sourced from licensed compounding pharmacies that follow pharmaceutical manufacturing standards, while research-grade peptides are labeled "not for human use" and are not subject to the same quality controls

Conventional natural killer (NK) cells, a kind of ILC, can produce IFN-, TNF- and granulocytemacrophage colony stimulating factor (GM-CSF) to participate in the immune response [49]