Applying vitamin C to your skin may reduce hyperpigmentation by interfering with an enzyme called tyrosinase, which is responsible for the production of melanin, a natural skin pigment ( Moreover, vitamin C acts as a brightening agent and can reduce the appearance of darkened spots without changing the natural color of your skin ( Some human studies that combine topical vitamin C with iontophoresis an electrical gradient applied to the skin found significant reductions in hyperpigmentation ( Though this method is promising, iontophoresis increases vitamin C absorption into your skin, meaning that topical application of vitamin C alone may not yield the same results ( Furthermore, most related studies use vitamin C in combination with other anti-hyperpigmentation ingredients like alpha-hydroxy acids, making it hard to determine the specific effects of the vitamin

The schematic illustrates the sequential phases of wound healing and the interplay between key cellular actors (neutrophils, macrophages, fibroblasts, keratinocytes, endothelial cells) and cytokines (e.g., TNF-, IL-6, TGF-, IL-10)
The liposomal delivery system encapsulates glutathione in tiny lipid spheres, protecting it from digestive enzymes and facilitating direct absorption into the bloodstream
Understanding the individual peptides Before exploring combination strategies, understanding each peptide's unique properties establishes the foundation for appreciating their synergistic potential
Before treatment, these patients were not eligible for surgery to remove their liver metastases
Acceleration of wound healing One of the original uses of GHK-Cu in clinical research was in wound healing