Here's why:
* Nail polish needs to evaporate: Nail polish dries through evaporation of the solvents in the formula. Water doesn't help with this process.
* Water can trap solvents: If you submerge freshly painted nails in water, it can trap the solvents near the nail, slowing evaporation.
* Temperature shock and clouding: A sudden temperature change (like cold water on warm, drying polish) can cause the polish to contract and become cloudy or develop tiny cracks.
* Nail polish is hydrophobic: Nail polish is designed to repel water, so water can't effectively penetrate it to speed up drying.
What does help nail polish dry faster:
* Quick-dry top coat: This is the most effective method.
* Drying drops or sprays: These products usually contain silicones and oils that help spread the solvents and speed evaporation.
* Thin coats: Applying multiple thin coats dries faster than one thick coat.
* Cool air: A fan or hair dryer on the cool setting can help evaporate the solvents.