: Carries variety packs and "Mini Packs" (e.g., 4-piece or 12-piece sets) under its Premium Beauty category.

: The official online shop of the Wella Company (OPI's parent company), providing exclusive professional pricing for technicians.

For smaller "bulk" needs, such as variety packs or mixed lots, retail marketplaces are a convenient alternative:

: Offers the full OPI line, including GelColor and Infinite Shine, with bulk shipping directly to salons.