Meaning ❉ Hair Photodamage signifies the subtle yet impactful structural alterations occurring within hair fibers, specifically triggered by sustained exposure to solar ultraviolet radiation. For the unique architecture of textured hair—coils, kinks, and waves—this manifests as compromised cuticle integrity, leading to increased porosity, a diminished ability to retain moisture, and often, a perceptible shift in natural or applied color vibrancy. Recognizing these specific vulnerabilities is fundamental to systematizing hair care, allowing for the informed selection of preventive measures and restorative applications. Understanding the science behind this phenomenon guides the practical application of routine adjustments, such as incorporating UV-protective ingredients or employing physical barriers like headwraps, a practice with deep roots in ancestral hair care traditions.
