Due to a number of studies still being taken out on copper tripeptide-1 it is not 100% which skin types can or cant use it
BMJ 369:m1361 Luo Y, Meng X, Cui L, Wang S (2024) Circadian regulation of lipid metabolism during pregnancy
Neuro Endocrinol Lett 32:13340, PMID: 21552194 Kaddurah-Daouk R, Yuan P, Boyle SH, Matson W, Wang Z, Zeng ZB, Zhu H, Dougherty GG, Yao JK, Chen G, Guitart X, Carlson PJ, Neumeister A, Zarate C, Krishnan RR, Manji HK, Drevets W (2012) Cerebrospinal fluid metabolome in mood disorders-remission state has a unique metabolic profile
This buildup of dead cells makes skin look dull and tired
Look for improvements in energy levels, coat condition, and overall vitality