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Postbiotics, which include purified butyrate, propionate, microbial peptides, and polyphenol-derived metabolites, provide a more regulated and pharmacologically predictable strategy of providing specific bioactive substances without the need of live bacteria [164]

[Zugriff 20.4.20.] Hamilos DL, Mascali JJ & Zelarney P

As researchers note, this decline coincides with the noticeable decrease in regenerative capacity of an organism.2 This suggests that, for example, lower natural GHK levels may contribute to things like slower wound healing in older adults.5 What is GHK-Cu used for

Clinical studies consistently show GHK-Cu to be well-tolerated across skin types