Light Cured Products do not use solvents or acids. LCN will not compromise the health of the natural nails. LCN offers a healthier choice for the nail technician and their clients without sacrificing results or performance. Continued research and development and product improvements ensure the highest level of biocompatibility and the lowest heat build-up during the curing process. LCN light cured products are highly durable, flexible, and momic the properties of natural nails. Do not yellow under UV or sunlight.