While the copper tripeptide contains histidine (which can be oxidized to 2-oxo-histidine), this residue is already coordinated to the copper ion, and the complexs high stability constant means the copper is not freely available for catalysis
In fact, they are often more effective when combined, as glutathione can help protect your body's collagen fibers from being damaged by free radicals
The Unique Role of Glutathione in Protein-Based Cosmetics Protein-based cosmetics are increasingly popular for their ability to nourish, repair, and rejuvenate the skin
We only use the highest quality vitamins, minerals, and antioxidants
Razak, and I.Ethell, A delicate balance: role of MMP-9 in Polyunsaturated Fatty Acid Metabolism in the Brain and Brain Cells, Frontiers in Cellular Neuroscience, vol
My view is that starting with GLOW and treating it as the default is almost always the right call for skin health and facial anti-aging goals