What role does VKORC1 play in Haut?

The provided context contains no specific information about VKORC1 and skin. Generally, VKORC1 encodes vitamin K epoxide reductase, a key enzyme in the vitamin K cycle. Vitamin K is crucial for blood clotting and bone metabolism, and also relevant for skin health – e.g., wound healing, vascular integrity, and possibly anti-aging. However, evidence for direct effects of VKORC1 variants on skin is weak and mostly mechanistic. Clinically, VKORC1 polymorphisms are most important for warfarin dosing. Without dedicated studies on skin outcomes, the relevance for consumer DNA tests is limited. Extrapolating from clotting or bone data to skin is speculative. Thus, evidence is best classified as unclear/mechanistic.