Some, but not all, observational studies have found that elderly individuals with lower status of folate and/or vitamin B 12 may have poorer memory performance, especially episodic memory (i.e., memory of events, times, and places) (108-111)
[DOI] [PubMed] [Google Scholar] Sun Y, Wu Q, Fu Q, Cong H, Shen Y, Yu B, et al
However, copper peptides should not be mixed directly with high-dose vitamin C or strong AHA/BHA formulations in the same application step, as these can chelate copper ions and reduce efficacy
J Neurochem 35: 12421245
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These systems metabolize and scavenge for reactive oxygen species, in a controlled and precise fashion