Cosmetic formulations also fall under a different regulatory framework than drugs, since most cosmetic ingredients do not require FDA premarket approval, except color additives 11
Readers are advised to consult qualified healthcare professionals before making any medical or lifestyle decisions.
For GHK-Cu, animal wound and hair-follicle findings should be read as preclinical evidence unless matched by human clinical data [6], [16]
This has profoundly impacted patients physical and mental well-being, significantly burdening public health systems and medical infrastructures (Lv et al., 2025)
Conventional pharmacological treatments, such as ChEIs and NMDA receptor antagonists, primarily offer symptomatic relief without modifying the disease course (Breijyeh and Karaman, 2020