Evidence check: HDL in the context of Haut

The role of HDL (high-density lipoprotein) in skin health is an emerging area of research. Beyond its classic function in reverse cholesterol transport, HDL exhibits anti-inflammatory and antioxidant properties that may benefit the skin. Some observational studies suggest an association between low HDL levels and inflammatory skin conditions such as psoriasis and acne. HDL may also influence wound healing by modulating immune cell activity in the skin. However, the evidence is largely mechanistic and based on observational data; causal relationships are not firmly established. HDL levels are influenced by diet, exercise, genetics, and overall metabolic health. A single home HDL test provides only a snapshot and is not sufficient to assess skin health. For skin concerns, consulting a dermatologist is recommended. The evidence for a direct, clinically meaningful role of HDL in skin health is moderate at best.