The Wet Technique, much like the Tumescent Technique, requires the injection of a cocktail into the patient's fatty tissue. But while it is the same cocktail in kind (saline solution, adrenaline to constrict blood vessels and minimise bleeding, local anaesthetic to reduce patient discomfort) this solution is much more concentrated. In addition, the amount injected will be much less than the amount of fat removed. Often only a hundred millilitres of solution are required to produce the desired cushioning effect. After the fluid has been injected, a small incision is made in the patient's skin, and a cannula (a very thin and hollow tube used for suctioning out fat cells) is inserted into the fatty layer. With the help of the fluid, the fat cells will have loosened and will be easier to remove. The cannula, functioning as a kind of surgical vacuum, is then gently moved back and forth by the surgeon, removing excess fat cells.

The Super-Wet Technique is the meeting point between the Tumescent and Wet Techniques. The cocktail of saline solution, adrenaline, and local anaesthetic is much more diluted than in the Wet Technique, yet smaller in volume than the Tumescent Technique. About the same amount of liquid is introduced into the patient's body as the amount of fat to be removed. Although both the Wet and Super-Wet Techniques are popular, the Super-Wet Technique is more widely employed, because the insulation of the additional liquid results in less blood loss.