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Research has examined DSIPs interactions with the hypothalamic-pituitary-adrenal axis, with some studies documenting effects on corticotropin releasing hormone and stress response signaling in animal models

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Research does show GHK-Cu: Stimulates collagen and glycosaminoglycan production Improves wound healing in laboratory and clinical settings Reduces inflammation and oxidative stress Supports healthier skin structure over time These effects are well documented in scientific literature, especially in wound care and tissue repair contexts

Tryptophan, for instance, helps the brain produce serotonin, which supports emotional stability and restful sleep