The Cubicle Labs Silk is also known as the Lubicle Silk previously. Cubicle Labs Silk is designed specially for application to the pieces, adds speed, dampens clickiness and creates a unique, plush feel with only a few drops. It is currently available in 10cc bottles with a built in dropper.
Lubicle Silk is effective on puzzles of all sizes, including minxes and big cubes.
Disclaimer: Although the lube is perfectly safe to touch, please do not ingest it, set it on fire, or expose it to extremely high temperatures.