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Product Description
Photochromic is a phenomenon in which a substance undergoes a reversible change in colour when exposed to light. Photochromic pigments contain molecules that can undergo a structural change when exposed to ultraviolet (UV) or visible light, leading to a change in colour. The chemical structure of these pigments allows them to absorb specific wavelengths of light, triggering a transformation in their molecular configuration and resulting in a visible colour change.