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8 Ex vivo studies further confirmed GAPs efficacy in reducing oxidative deoxyribonucleic acid (DNA) lesions and cyclobutene pyrimidine dimers under UVA and UVB irradiation, respectively, though these findings were limited by the small number of biomarkers evaluated

It functions as a powerful signaling peptide that declines significantly with age (from 200 ng/mL at age 20 to 80 ng/mL at age 60)

Impact of coenzyme Q10 and selenium on seminal fluid parameters and antioxidant status in men with idiopathic infertility

[ref] In older adults with major depressive disorder, saffron (60mg/day) was compared to sertraline (Zoloft) for depression

Effects in the studies that found them typically showed up after 4 to 12 weeks, not days, so short-term use isn't a fair test