can kids have glutathione Kids' Immune Support Made Simple: The Liposomal Advantage – Core Med Science Frontiers | Improving Antioxidant Capacity

In a 14-month randomized, double-blind, placebo-controlled trial that administered a daily micronutrient-fortified beverage (details lacking) or placebo to 608 children (aged 6-15 years) in India, micronutrient supplementation was linked to improved scores on one measure of attention and concentration (Knox Cube test) but not on another assessment (Letter Cancellation test) (104)

The dilution can reduce the matrix difference between sample and standard to get better accuracy

This age-related decline is one of the most frequently cited data points in copper-peptide research literature, and its a primary reason GHK-Cu is studied within the broader context of cellular aging and peptides for longevity research rather than treated purely as a wound-healing or dermatology compound

Cullen, P