It can no longer be used. Once a nail magnet loses its magnetism, it can no longer generate the magnetic field needed to attract the metallic particles in the gel polish, making it impossible to create special effects like "cat-eye" or "aurora" patterns.
These tools typically use neodymium magnets (NdFeB), which are very strong but sensitive to high temperatures and physical impact. Frequent exposure to heat sources (such as nail lamps) or dropping the magnet can easily cause its magnetic strength to weaken or disappear entirely. Improper storage-such as allowing multiple magnets to collide or placing them near other strong magnetic fields-can also compromise their magnetism.
Nail magnets are inexpensive; a single unit usually costs between a few and a dozen yuan, and they are often sold as part of a nail art kit. If the magnet simply loses its magnetism, the easiest solution is to buy a replacement. A wide variety of specialized nail magnets are available on the market in different shapes, such as bars, squares, and waves.
To extend its lifespan, it is best to wipe the magnet clean with a soft cloth after use and store it separately in a dry place. Avoid letting it stick to other magnets or metal objects, and keep it away from electronic devices with strong magnetic fields, such as mobile phones and speakers.
