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It involves encapsulating the active ingredient within tiny lipid-based bubbles called liposomes

MSCs exert their therapeutic effects on PNI possibly through their dual functions, multipotent differentiation capacity into neural type of cells and their paracrine secretion of an array of bioactive factors with multiple trophic effects on both neural and nonneural cells [13], whereby the potent immunomodulatory effects of MSCs on immune cells, particularly macrophages, may constitute one of the major mechanisms by which MSCs exert their therapeutic effects on PNI [14]

Laboratories [well, NHS labs in the UK] have very sophisticated error-trapping routines

While convenient, these products have limitations: Shorter usable lifespan