Ultraviolet and visible absorbance carries information here too, since the d-d transition band of a copper-peptide complex sits in the visible region and its position reflects the coordination environment
A histidine at the second position, combined with the N-terminal amine and a backbone nitrogen, produces a three-point binding site with high affinity for copper(II)
Antioxidant Defense and Redox Balance Glutathione serves as the bodys primary intracellular antioxidant by neutralizing reactive oxygen species (ROS) and other free radicals generated during normal cellular metabolism
It also yields many other health benefits, including increased energy, stronger immunity, and detoxification
It is also able to cross the blood-brain barrier (BBB) to reach the subarachnoid space of the leptomeninges, causing meningitis with or without septicemia (van Deuren et al., 2000)
If your goal is specifically to support nighttime recovery, experiment with taking it about an hour before your wind-down routine begins