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TNT Nail Spa sits at 7114 Dublin Blvd, open seven days a week with long hours that match how Tri-Valley days actually run — before work, after work, and all weekend.

The shop is known for dip powder manicures that last through the work week, and a deluxe spa pedicure finished with hot stones. Walk-ins are welcome; appointments mean you get the chair you want.

Regulars ask for specific technicians by name — Heather and Kelly come up in review after review — and that's how this shop runs. You come once, the next time you come back you're greeted as the person whose gel shape the tech already remembers.

Bringing the kids? Kelly is highly recommended with children — mentioned more than once in Yelp reviews for being patient and fun. That's not a tagline; that's what shows up in the notes customers leave.