Which massage technique does not require the use of a lubricant?

Friction is the massage technique that does not require the use of a lubricant. This technique involves applying pressure with the fingertips or palms directly against the skin in a way that creates friction without sliding over the skin's surface. The primary purpose of friction is to break down adhesions, increase blood flow to the area, and improve tissue mobility. Because it is a direct application of pressure rather than a sliding motion, the use of lubricant is unnecessary and would actually hinder the effectiveness of this technique.

In contrast, effleurage and petrissage are techniques that involve gliding movements and kneading that benefit from lubricant to reduce friction and allow for smooth movement over the skin. Vibration is also typically performed with some form of contact that is more comfortable with lubricant, although it can be done without it depending on the specific application. Therefore, friction stands out as the unique technique that maintains its efficacy without the need for a lubricant.