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Regular assessment of physical appearance, stability markers and potency can help researchers maintain experimental consistency and reliability

References: Wu G, Fang YZ, Yang S, Lupton JR, Turner ND. Glutathione metabolism and its implications for health. J Nutr. 2004;134(3):489-492. doi:10.1093/jn/134.3.489

Huang T, Wang J, et al

In a similar study among Chinese neonates, this test showed a sensitivity of almost 100% in deficient cases involving both males and females with residual enzyme activity below 60% (74)

In cognitive studies on elderly mice (28 months old), GHK-Cu administered at 10 mg/kg five times per week for three weeks produced significantly faster maze navigation, suggesting partial reversal of age-related cognitive decline