Been going back and forth on this myself lately. Running two milligrams of the skin peptide daily, alongside a bit over a milligram of the immune one, starting back in March, and genuinely seeing results now. Fine lines softening up and some of the dull, sunken areas filling back in.
I am right in the age range where this compound is supposed to shine, and I take zinc alongside it daily too. Really just weighing whether to keep running it straight through, or risk losing some progress by cycling off given the copper buildup concern that has not been fully confirmed either way.