What is the Blue Nail Theory?

With 2025 in full swing, nail trends are already making a statement and taking over social media.

The blue nail theory has been popping up on Tiktok, indicating a fun way for people to express their relationship status.

Influencers across the platform are rocking their blue nails along with the trend, which is said to reflect that they are in a relationship.

According to Spate, these are the most viewed videos along with this trend and their vision counts:

1. @catherineapullan: 517.9k
2. @NotHaileyMichelle: 241.9k
3. @786cosmetics: 135.7k
4. @qtnailslashes: 82.1k
5. @Adiiijay: 65.1k

Jasmine Lewis, nail educator with the nail dropper, said: “I’ve definitely seen the blue nails theory trending on Tiktok, and it’s funny. The idea that blue nails mean someone is in a relationship is pretty funny “But the theory that guys always suggest blue when you ask them what color to make your nails is even funnier. It’s just one of those fun, random trends that gives nails a little extra meaning.”