Photodegradation of herbicides due to ultraviolet (UV) radiation is a major challenge in maintaining product efficacy, especially in regions with high solar exposure. This degradation can significantly reduce the herbicide’s persistence on soil or leaf surfaces, compromising weed control and agronomic performance. To offset these losses, higher application rates are sometimes used, but this is not a sustainable solution. The degree of UV degradation depends on variable environmental and application conditions, making it difficult to determine appropriate compensation levels. This uncertainty results in inefficiency, increased costs, and potential environmental concerns. With climate change intensifying sunlight exposure in many regions, the challenge is likely to worsen. There is a growing need for innovative solutions that can stabilize herbicides under UV stress and extend their field longevity, without compromising safety or environmental compatibility.