Meaning ❉ Capillary action describes the natural upward movement of liquids within narrow spaces, defying gravity through the interplay of adhesive forces attracting liquid to surfaces and cohesive forces binding liquid molecules together. For textured hair, this principle dictates how moisture and beneficial formulations are drawn into the internal structure of each coil and curl. Understanding this phenomenon is central to systematizing effective hair care routines, ensuring that hydrating agents penetrate deeply rather than remaining superficial. This knowledge allows for a thoughtful approach to product application, optimizing absorption for robust hydration and supporting the well-being of Black and mixed-race hair. It informs why damp hair readily accepts a leave-in conditioner or a rich oil, transforming routine steps into purposeful actions for sustained hair health.
