RLT works through photobiomodulation, a process where specific wavelengths of red and near-infrared light penetrate the skin to interact with cells. When the light reaches fibroblasts — the cells responsible for collagen synthesis — it stimulates their activity by enhancing mitochondrial energy production (ATP). With more cellular energy, fibroblasts produce new collagen fibers more efficiently.Additionally, RLT helps improve blood circulation in treated areas, ensuring that skin cells receive the oxygen and nutrients they need for repair and regeneration. Over time, this leads to thicker, healthier skin with fewer visible signs of aging.