Collagen begins losing its internal organization before skin shows visible signs of aging, thinning, or damage. Researchers used advanced light-based imaging to measure collagen’s chirality, fiber alignment, and structural coordination across human skin samples. Early tissue decline involved uneven fiber orientation, increased tangling, and fragmented coordination, even though collagen protein remained present. The findings could support earlier diagnosis, improved wound monitoring, and the development of biomaterials that better reproduce collagen’s natural structure. Skin often shows damage only after deeper changes have already taken hold. Fine lines, thinning, and loss of strength appear late, long after the earliest shifts begin. New research suggests those first changes happen at a level far too small to see, hidden within the structure of collagen itself. A study by researchers at Hiroshima University and international partners reveals that collagen begins to lose its internal organization before any visible damage appears. The findings point to a new way to detect early tissue changes, long before the skin shows clear signs of aging or injury. A Hidden Structure Beneath The Surface Collagen …