Cryolipolysis: for fat you can pinch — and only for that

What is cryolipolysis?

Cryolipolysis cools an area of localized fat, under control, to a temperature at which the fat cell dies and the skin does not. That is the entire principle: the adipocyte is more sensitive to cold than the skin, muscle or nerve around it, so it can be damaged selectively.

The affected cells are not "burned" or drained on the spot. They die, and the body clears them over eight to twelve weeks — which is why nothing is visible when you walk out of the session, and why anyone promising otherwise is selling something else.

It is applied with an applicator that draws in the fold of fat and cools it for 35 to 60 minutes depending on the area. No incisions, no anaesthesia, and normal activity resumes the same day.

Does cryolipolysis work? Yes, within its limits

It works, and the literature supports it: one session reduces roughly 20 to 25% of the thickness of the treated fat layer in that specific area. That is a real, measurable result — but it is worth understanding what it does and does not mean.

It means contour reduction in a localized fold. It does not mean a dress size, a visible change on the scale, or a result comparable to liposuction, which removes far more in a single operation and treats several areas at once.

The practical rule is simple: if the fold can be pinched and is localized, cryolipolysis has something to offer. If what is excess is general volume, or if the problem is loose skin, cold is not the answer and another session will not make it one.

Paradoxical adipose hyperplasia, which almost nobody mentions

This is the complication worth knowing beforehand rather than afterwards. In a minority of patients the treated area, instead of shrinking, increases in volume two or three months later, forming a firm block shaped like the applicator. It is called paradoxical adipose hyperplasia.

It is uncommon, it is not dangerous, and why it happens is not fully understood; it has been reported more often in men. What matters is that it does not resolve with more cooling sessions: once it appears, correction is surgical, usually liposuction of that area.

We mention it because it belongs in honest consent for this treatment, and because it rarely appears in the brochure of whoever is selling it.

The pinch test

It is literal, and it is the best filter that exists for this treatment: if you can take the roll between your fingers and lift it, it is treatable. If you cannot pinch it, it is not.

The reason is physical. The applicator draws the fold in and cools it from outside. With no fold to draw in, there is nothing to cool. Visceral fat — the fat inside the abdomen, around the organs, the fat that makes a hard belly you cannot pinch — is not touched by cryolipolysis, nor by any other external machine. That fat is lost with weight, with exercise, and with metabolic change. Full stop.

This distinction is what separates a reasonable treatment from a polite fraud. Someone with a hard, visceral belly who is sold ten sessions of cryolipolysis is being charged to freeze a few millimetres of subcutaneous fat sitting on top of a problem that remains, underneath, untouched.

What to expect, with honest numbers

One area is treated per application — flanks, lower abdomen, inner thigh, under the chin, arms, back. The session lasts between 35 and 60 minutes depending on the area.

For the first minutes there is intense cold and suction; then the area numbs and stops being felt. When the applicator comes off, a pale, firm area remains and is massaged — and that part is uncomfortable for a couple of minutes. No anaesthesia, no needles, no incision, and no recovery: you leave and carry on with your day.

The result is not immediate, and this bears underlining: clearance of the damaged adipocytes is gradual. Change starts to show around 3–4 weeks and completes between month 2 and month 3. A second session on the same area is often proposed, and that is said at the consultation.

And one uncommon but real warning: paradoxical adipose hyperplasia exists — a reaction in which the treated area increases in volume rather than reducing. It is rare, it is known, and it is one of the reasons this treatment should be prescribed and supervised by a physician — and why that physician should be someone able to correct it surgically if it happens.

All surgery carries risk and requires a prior medical assessment. Results may vary according to each patient, their anatomy and their individual healing process.

What it does NOT do, said once and clearly

If any of this describes your case, cryolipolysis is not your treatment, and here you will be told so:

Cryolipolysis has one great virtue: it demands nothing of the patient. No anaesthesia, no downtime, no courage. That virtue is also its commercial trap, because it is desperately easy to sell to someone who needs something else.

• It is not weight loss. It is not a weight treatment. It is contour, in one specific area.
• It does not treat visceral fat — the hard belly you cannot pinch.
• It does not tighten skin. Quite the opposite: in already lax skin, removing volume can leave it laxer. Where there is laxity, a tightening component must be added — Alma PrimeX, body endolift — or the path reconsidered.
• It is not a substitute for liposuction. Where volume is real, liposuction gives a result of a different order, in a single operation, with a control of contour no external machine reaches.
• It does not remove hanging skin. That is an abdominoplasty. There is no shortcut.
• It does not treat cellulite. Cellulite is a problem of fibrous septa, not of fat volume.

Why ask a surgeon about it

Cryolipolysis is offered today in spas, gyms and beauty centres with no physician present. It is legal in many settings and is often done with no clinical judgement at all: whatever can be pinched is pinched, the cold is applied, and the session is charged.

The difference in having it assessed by a plastic surgeon is not the machine: it is that whoever prescribes it also knows how to do the other thing. Someone who owns only a cold machine can only recommend cold. Someone who operates can tell you — and will tell you — "this is not what you need", which is exactly the sentence you will not hear in a centre that lives on selling packages.

Here the assessment is made by Dr. Arístides Arellano Huacuja, plastic and reconstructive surgeon (specialty licence 0002008). Cost is defined at the consultation, according to area and the number of applications. See the price list. If you are weighing cold against surgery, here is the table: how much liposuction costs in Mexico.

Dr. Arístides Arellano is a plastic surgeon holding a specialty licence: he practises under a Mexican medical licence (D.G.P. 1125959) and a specialty licence in Plastic & Reconstructive Surgery (0002008), both issued by the Directorate General of Professions (DGP), which reissued his certificate of professional standing in 2025. His career began before Mexico’s present-day specialty-board system existed: he belongs to the founding generation of plastic surgery in Puebla, the second generation of a surgical tradition started in 1971 by Dr. Francisco Arellano Ocampo. Trust is verified, not promised: both licences are public and anyone can look them up in the DGP’s National Registry of Professionals.

Trust is verified, not promised. All 210 scanned documents —degree, licences, diplomas, publications and certificates, from 1977 to 2025— are open in Dr. Arístides Arellano’s credential archive, alongside an explanation of the difference between a specialty licence and a board certification.

The plan · what happens after the session

• The session (35–60 min)Intense cold and suction for the first minutes; then the area numbs. When the applicator comes off the area is massaged: that part is uncomfortable for a couple of minutes. No anaesthesia, no needles, no recovery.
• Days 1–14There may be redness, swelling, numbness or tenderness in the area. All expected and temporary. The numbness can last weeks and is normal.
• Weeks 3–4Change begins to show. Before this there is nothing to judge: clearance of the damaged adipocytes is gradual.
• Months 2–3Result consolidated. This is where a second application on the same area is decided — something already raised at the consultation.
• MaintenanceThe result holds with stable weight. Fat cells are removed from an area; the remaining ones are not prevented from enlarging if weight rises. Results may vary.

Frequently asked questions

Every figure published on this site is approximate and is not a quote. Any procedure or treatment first requires a private assessment consultation with Dr. Arístides Arellano —$800 MXN, charged separately— and it is at that consultation that the definitive cost of your case is determined.

Educational content; it does not replace a medical consultation. Results may vary from person to person.