Here's why and some tips:
* Base Coat: Nail hardeners often act as a base coat. They create a smooth, protective layer on your nails, which is what you want before applying colored polish.
* Application: Apply the nail hardener according to the product's instructions (usually 1-2 coats). Let it dry completely before adding your nail polish.
* Benefits: Using a nail hardener underneath polish can help protect your nails from staining and chipping. It can also promote nail strength.
However, there are a couple of things to consider:
* Nail Hardener Type: Make sure the nail hardener you're using is designed to be used as a base coat. Some very strong treatments might be best used on their own for a period of time before applying polish.
* Product Compatibility: Generally, most nail hardeners are compatible with regular nail polish and gel polish. If you are using something new it's always a good idea to do a test spot first.
In summary, using Sally Hansen Nail Hardener as a base coat before applying your regular nail polish is a common and beneficial practice for many people.