How are hsCRP and skin aging related?

hsCRP (high-sensitivity C-reactive protein) is a well-established systemic marker of inflammation. Chronically elevated levels indicate low-grade inflammation, a process known as 'inflammaging,' which is mechanistically linked to skin aging. Inflammation promotes collagen and elastin degradation, increases oxidative stress, and accelerates wrinkle formation and pigmentation disorders. Observational studies have associated higher hsCRP with reduced skin elasticity and more visible signs of aging. However, hsCRP is not a skin-specific marker; it is influenced by diet, smoking, sleep, infections, and other factors. The evidence is primarily mechanistic and observational—direct interventional trials targeting skin aging via hsCRP reduction are lacking. Therefore, hsCRP should be interpreted as part of a broader risk profile, not as a standalone skin aging predictor. An anti-inflammatory lifestyle (omega-3s, antioxidants, exercise, stress management) may lower hsCRP and support skin health. Caveat: Normal hsCRP does not rule out skin aging, as local skin inflammation (e.g., from UV exposure) may not be reflected systemically.