It's a chemical soup of peptide fragments and free copper
"Targeted Apoptosis of Senescent Cells Restores Tissue Homeostasis in Response to Chemotoxicity and Aging"
Hebbian-type plasticity is induced within seconds or minutes, and to effectively counteract the tendency for runaway dynamics imposed by these fast plastic changes, homeostatic mechanism(s) should operate on a compatibly fast time scale (Wu and Yamaguchi, 2006
Instead of providing short technical answers, I prefer to explain each topic in a way that reflects how the ingredient is used in real skincare products, how it appears in the global market, and why it continues to attract attention from both consumers and brands
doi:10.3389/fnins.2018.00644 Zhang H, Wang Y, Lian L, Zhang C, He Z