Melasma is a chronic skin pigmentation condition characterized by irregular darkened patches that commonly appear on the cheeks, forehead, nose, upper lip, and jawline. The condition is strongly associated with ultraviolet radiation exposure, oxidative stress, hormonal signaling changes, inflammatory mediators, and melanocyte overactivation. Estrogen signaling, progesterone fluctuations, thyroid-related endocrine stress, inflammatory prostaglandins, and reactive oxygen species can all influence melanin synthesis and pigment distribution within the epidermis. Melasma is more commonly observed in individuals exposed to repetitive sunlight, environmental pollutants, chronic heat exposure, endocrine fluctuations, or inflammatory dietary patterns. The melanocyte is the primary pigment-producing cell involved in melasma. These specialized cells synthesize melanin through enzymatic reactions involving tyrosinase activity, oxidative signaling pathways, inflammatory cytokines, mitochondrial stress responses, and cellular defense systems. Increased oxidative burden may amplify melanogenesis while weakening normal skin barrier protection and cellular repair mechanisms. Inflammatory mediators such as prostaglandins, cytokines, and stress-related signaling molecules can increase pigment production and prolong discoloration patterns within the skin. A whole food plant-based dietary pattern rich in colorful fruits, vegetables, legumes, herbs, seeds, and antioxidant-containing whole foods may help support normal oxidative balance, endothelial circulation, collagen integrity, inflammatory regulation, and skin barrier stability. Plant foods naturally contain carotenoids, flavonoids, anthocyanins, polyphenols, glucosinolates, vitamin C compounds, and mineral cofactors involved in antioxidant recycling and normal tissue repair. These compounds may help support cellular defense systems associated with oxidative stress regulation and ultraviolet-associated skin stress responses. Dark berries, leafy greens, citrus fruits, cruciferous vegetables, green tea, tomatoes, turmeric, pomegranate, broccoli, kale, strawberries, blueberries, red onion, and herbs rich in polyphenols provide biologically active compounds linked to oxidative defense pathways and inflammatory modulation. Fiber-rich whole foods may also help support endocrine balance, insulin signaling stability, estrogen metabolism pathways, gut microbiome activity, and detoxification systems associated with hormonal metabolite processing. Maintaining hydration, minimizing highly processed foods, reducing inflammatory dietary burden, and supporting antioxidant-rich whole foods may help support overall skin resilience and pigment regulation biology.