DND DC trios: one number, three services
A DND DC trio is a three-piece set - gel polish, matching lacquer and matching dip powder - sold under a single DC number and shade name. DND DC Trio 323 Vintage, 324 Safari, 325 Icon and 326 Nightrider sit in the same numbered run, which reaches into the 300s, so one number identifies the shade no matter which of the three formats a tech picks up.
What the three-piece set buys you
Flexibility at the station. A single shade on the shelf can be run as a gel service, a lacquer service or a dip service, and it stays that shade whichever one the client books, because all three pieces are made to the same DC number rather than matched by eye from separate lines. It also collapses your ordering: one number restocks all three formats instead of three separate line items to track.
Trios versus buying the pieces on their own
Trios earn their keep on shades you offer across the whole menu. Where a color only ever gets used in one format, the single piece is the tidier buy - DND dip powder and the wider DND range are listed separately for that. To compare matched sets from other vendors, see trios, and if you are outfitting a new station the gel half needs curing, so check nail lamps before you order color.
Orders ship in 1-2 business days, and there is free shipping on orders over $150 within the 48 contiguous states.