does ghk-cu lose effectiveness over time tolerance Repost from @skincareanarchy • Copper peptides are one of the most misunderstood categories in skincare because people talk about them like they are all the same. They are not. The form with Copper Peptide (GHK-Cu): Clinical Uses,

Irritable Bowel Syndrome (IBS) and leaky Gut Syndrome Improvement of intestinal barrier function BPC 157 can up-regulate the expression of tight junction proteins (such as Occludin and ZO-1), enhance the integrity of the intestinal barrier, and reduce bacterial and toxin translocation

The peptides status as a research-only compound means that these experiments are confined to preclinical models and are interpreted as exploratory rather than definitive evidence for any health claim

This increases the activity of sirtuins (SIRT1) and PARPs, which are essential for DNA repair and longevity

PMID 24344881

Maybe sometimes not