Meaning ❉ Overnight conditioning defines a dedicated hair care practice where a nutrient-dense preparation remains on the hair for an extended duration, often throughout sleep. This deliberate application allows the rich emollients and humectants to thoroughly penetrate the unique architecture of textured hair, particularly coily and kinky strands, which possess distinct hydration requirements. It functions as a foundational, automated-like principle within a comprehensive hair care system, providing sustained moisture and malleability, crucial for preserving the integrity of Black and mixed-heritage hair. Such a methodical approach aids in mitigating dryness, enhancing pliability, and supporting the retention of length by minimizing friction and strain. This gentle, consistent implementation of knowledge offers a quiet, steadfast support for the natural patterns of textured hair, promoting its inherent vitality and resilience.