spirulina glutathione Benefits of Algae (Spirulina) in Skincare – Honey Girl Organics Chlorella vs. Spirulina: What's the
Description
Cold Spring Harbor Laboratory Press

Normal distributions become more apparent (i.e., perfect) the finer the level of measurement and the larger the sample from a population

Kanwar A, Hayes AJ, Mohamed ASR, French CC, Gunn GB, Beadle BM, Phan J, Skinner HD, Lai S, Kies MS, Weber RS, Morrison WH, Rosenthal DI , Fuller CD, Garden AS

Genome-wide screen identifies curli amyloid fibril as a bacterial component promoting host neurodegeneration
doi: 10.3390/pharmaceutics13111814

This suggests that excessive GHK-Cu (or other copper peptides) might theoretically push skin MMP-1 concentrations beyond levels supporting healthy collagen production into ranges associated with collagen fragmentation and breakdown seen in older skin with naturally elevated MMP-1
