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doi: 10.1186/s13073-016-0303-2

Vitamin D is a neurosteroid that is active in brain development

Drug Intell Clin Pharm

It also helps to regulate the production of pigment in the skin, meaning that you will have a more even skin tone and fewer dark spots

Research has examined how GHK-Cu activates collagen type I, III, and IV synthesis, influences collagen cross-linking, and modulates the balance between collagen production and degradation establishing it as a foundational tool for skin biology and connective tissue research

Aims to stimulate tissue regeneration, reduce inflammation, and modulate local healing environments