Zeltiq Device - What Does the Number on the Machine Represent?

During the zeltiq treatment, there is a number in between the minus and plus arrows on the screen, what’s the number represent? Is the number representing the temperature? Is it the higher the number, the more the fat grabs (powerful) ?

Doctor Answers 6

Zeltiq--by the numbers

The number between the arrows represents suction.  (generally somewhere between 50-70, more commonly 50-60)  This number can effect how much tissue is drawn up in to the machine but how 'good' your results or treatment is not necessarily dependent on a bigger number (i.e. higher numbers like 70 don't mean you'll have better results than 55).  Higher suction can be beneficial in getting the handpiece to 'stick' in some tricky areas but can also result in more bruising after or discomfort during the procedure.


Los Angeles Plastic Surgeon
4.7 out of 5 stars 145 reviews

Settings on the Zeltiq Coolsculpting Machine

It basically represents the amount of suction that pulls the skin and fat into the cup that cools that fat.  High numbers can pull more fat into the treatment zone, but could result in more bruising or discomfort.  The sweet spot seems to be between 50-70, depending on the patient and the cup being used.  Hope this helps!                      Take care, Dr. Groff

William Groff, DO
San Diego Dermatologist
4.8 out of 5 stars 46 reviews

Numbers on Zeltiq Device

The numbers represent the level of suction on the applicator. The level of suction will vary depending on the area being treated, the pliability of the tissue in the area, and the applicator being used. It does not affect how much fat will be reduced. It is adjusted in order to maintain optimal suction on an area.

Steven H. Williams, MD
San Francisco Plastic Surgeon
4.8 out of 5 stars 49 reviews

Suction rating on Zeltiq

The numbers are a gauge of negative pressure, the suction applied to the skin that draws in the skin and fat.  It shouldn't be too excessive nor too weak.  The average is 60 but we adjust it if needed for the fit.

Ronald Shelton, MD
Manhattan Dermatologic Surgeon
4.9 out of 5 stars 37 reviews

Numbers on CoolSculpting Machine

Thank you for your question.

The number you are referring to indicates how much tissue is taken into the chamber. This number is generally between 50-70.  The higher the number doesn't necessarily mean a better result.. sometimes we are treating a more difficult area and the suction needs to be higher.  A higher number may also result in more bruising after the procedure.

I hope this helps.


Tom J. Pousti, MD, FACS
San Diego Plastic Surgeon
5.0 out of 5 stars 1,484 reviews

Zeltig Coolsculpting

Coolsculpting works excellent for reducing fat bulges. The machine settings and numerical values have nothing to do with the number of fat cells treated. These settings have to do with the vacuum chamber and the ability to adequately maintain suction and treat the targeted areas.

Steven Hacker, MD
West Palm Beach Dermatologic Surgeon
5.0 out of 5 stars 4 reviews

These answers are for educational purposes and should not be relied upon as a substitute for medical advice you may receive from your physician. If you have a medical emergency, please call 911. These answers do not constitute or initiate a patient/doctor relationship.