The basement membrane (BM), a thin layer in the skin, a mere 50–100 nm thick, is the unsung hero of radiant skin, dubbed the “golden connection layer.” Nestled between the epidermis and dermis, this intricate extracellular matrix—comprising lamina lucida, lamina densa, and sublamina densa—delivers structural support, nutrient transport, and seamless epidermal-dermal communication. Its key players, […]