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Or safe

Because CI is the largest and most energetically costly respiratory complex to assemble, coordinating its maintenance with phases of high energy and cofactor availability may provide an efficient mechanism to sustain rhythmic respiration

Supports Immune System Health

However, supplementation might be beneficial for those with chronic illnesses, high oxidative stress, or conditions like liver disease

Gastroenterology 112(2):387397

A 2018 review identified several demonstrated capabilities of GHK-Cu: Research from 2015 noted that GHK-Cu may stimulate collagen production, regulate the skin remodeling process, attract immune cells to injury sites, and restore replicative vitality to fibroblasts (cells that help form connective tissue) in patients whove undergone radiation therapy for cancer