What is the shelf life of gel nail polish? How long can it be used after opening?

The general shelf life of unopened gel nail polish is about 2-3 years. It is recommended to use it within 6-12 months after opening to ensure the best effect and safety. After opening, the ingredients may oxidize or separate due to direct exposure to air and light, affecting the performance and effect. It is generally recommended to use it within 6 months after opening to ensure the best curing effect, color performance and product safety. If the following conditions are found in the opened nail polish, it is recommended to stop using it immediately: obvious color stratification and shaking is ineffective; the texture of the nail polish becomes thicker or lumps; the odor is abnormal or the irritation increases; uneven application or poor curing effect. Product storage suggestions: After use, be sure to tighten the bottle cap to reduce air entry; store in a cool and dark place, avoid high temperature and direct sunlight; avoid residual nail polish at the bottle mouth causing the bottle cap to be loose; shake well before use to ensure that the ingredients are evenly distributed.