* Different Chemical Compositions: Regular nail polish and UV gel polish have very different chemical compositions. Regular nail polish is air-dried, while gel polish requires UV light to cure and harden.
* Adhesion Issues: The regular top coat likely won't adhere well to the cured gel top coat. It might peel, chip, or bubble.
* Drying Issues: The regular top coat may not dry properly over the gel top coat. Because the UV gel top coat is non-porous after curing, it will prevent air-drying of the regular polish.
* Softening of the Gel: Some ingredients in regular polish can soften or damage the UV gel top coat.
Alternatives:
* Use Gel Top Coat: If you want to add another layer of top coat, use a gel top coat that is compatible with the gel polish you already have.
* Remove and Reapply: If you want to switch to regular nail polish, remove the gel polish entirely and then apply regular polish and top coat.
In summary, stick to using gel top coat over gel polish and regular top coat over regular polish for the best results.