The osmol is the physical unit used to measure osmotic pressure. When one mole of a substance is dissolved into one litre of water, it exerts an osmotic pressure of one osmol. The osmotic pressure of the intravascular, interstitial and intracellular areas range from 290 to 308 milliosmoles.
Differences in osmotic pressure entail a flow of liquid toward the area with the greatest osmolarity when areas are separated by a semi-permeable membrane.

The cellular membrane is comparable to a semi-permeable membrane.

In this case, upon injecting a hypotonic solution into the fat cells,
osmotic pressure is used to provoke the intracellular hyperhydration of the fatty tissues.
This hyperhydration causes the cell walls to weaken or lesions to occur in relation to hydroelectrolic disturbances.
Hyperhydration may cause the fat cells to expand to up to 27 times their normal volume.
Straight after the injection the destruction process is completed by applying a transcutaneous ultrasound field.

It is possible bring the lytic action to the fore by greatly increasing the (doubly) plasmatic triglycerides an hour after the treatment.
The contents of the fat cells are instantly absorbed into the blood stream, to thereafter be broken down by the liver