Frequently Asked Questions

We have compiled a list of the most common questions our customers have asked us. This FAQ is a bit different than the FAQ seen on our main website, as it is specifically designed for past purchasers of our products . If you have any other questions or comments, please feel free to contact us at We respond within a few hours -- 24 hours at most.

Last Updated:

February 26, 2021

Am I required to work out while wearing your products?

No. It is best to keep your body temperature as low as possible.  Although diet and exercise are highly encouraged for a healthy lifestyle, we recommend minimal movement when wearing our products.

Are there any side effects?

You may experience any of the following side effects: tenderness to the touch after use (to the treated areas), tingling sensations on the treated areas, redness on the treated areas, and numbing sensation from the cold (usually subsides after 10 minutes).

These are all temporary and usually resolve within minutes.

Do your products work on any body type?

Our products use a unique fat freezing process that works on almost all body types. Women who are pregnant should avoid using our system, but otherwise it is an effective process for anyone with stubborn pockets of fat under the skin. Our ideal candidate, however, is within 20% of their ideal body weight.

Does it hurt to wear your products?

The first few minutes can feel a bit cold. Within about ten minutes, however, your body will numb and adapt to the sensation.

How long will the results last?

Once the fat cells have been damaged, they will be permanently removed from your body via the lymphatic system. However, in order to maintain these results and avoid new fat from forming, you must maintain a healthy diet and exercise routine. If you gain weight there will be less cells in the targeted areas, making it harder to gain fat in those areas.

How much weight can I expect to lose?

Our products do not specifically aid in weight loss.  They are fat loss systems. When you lose weight, you lose weight from all over your entire body. Our products target specific areas. Its primary purpose is to help you lose fat in stubborn areas. The amount will be quite minimal, but when measured as circumference (waist, thighs, etc) it will be noticeable.

However, due to the cold-thermogenesis effects, you may likely lose some weight.

How often can I use the products?

Although you can use the products daily, we do not recommend it.  It is recommended that you do it 2-3 times per week with days off in between.

By starting slowly, your body will begin to acclimate to the fat freezing process.

How will I know if it is working?

Our products will start working as soon as treated area has reached the proper temperature and remained at that temperature for the appropriate amount of time. When you are done using it, the area should be cold to the touch and the skin will likely be pink in color.

Are your products totally safe?

Yes, when used as directed there are no severely adverse or long-term side effects.

What kind of results can I expect?

We cannot promise a standard set of results, and results will vary based on each user. However, we are confident that you will be happy with the results you get after using our products as instructed. The results will be subtle but will show their full potential after 3-4 months.  This is because it takes some time for the fat cells to be flushed from your body via the lymphatic system.

When can I use the systems?

Our products are meant to be worn whenever you have the time. Such flexibility is what enables you to fit the fat freezing process into your busy schedule.

However, you should minimize using them right after you have eaten, directly out of the shower, or immediately before, during, or after a workout.

Can I wear the products longer than suggested for faster results?

We do not have enough data to give a confident answer on that.  Wearing the product(s) 3  times per week for the entire period seems to get results.  It simply takes time for your body to flush out the damaged fat cells, and over-wearing the product can have diminishing returns.  One option is that you can look at the reviews to see how other people have used our product.

I have lost X inches with your system in the last 3 months. Can I use it for another 3 and lose X more?

Every individuals body is different.  We believe using the product for extended periods of time will eventually lead to diminishing returns.  In other words, it will likely not work as well.

However, our products are fairly new so we will update this data as we learn more.

How do I use the body fat massager?

After using the wrap, we highly recommend a simple massage in a circular (or rolling) motion for 1-2 minutes. Be very gentle. This helps break down the damaged fat cells. We highly recommend using a body lotion with the massager. The massager also works well in the shower for any areas with cellulite. If massager is uncomfortable, massaging with your hands (without massager) can also be effective.

If you bought our thigh or arm systems, you will use the rolling massager.   This massager does not require lotion.

How can I tighten the Isavera Classic wrap / belt?

Tightening the wrap may seem foreign at first but it’s very simple. To tighten, simply undo the Velcro with your right  hand and pull the outer layer of the wrap to your left. At the same time, use your left hand to pull the inner layer of the wrap to the right. Re-adhere the Velcro.

Can I treat the same area twice in the same day?

Do not treat the same area twice in a day. However, this is totally fine if you want to treat separate areas.  You may, however, need extra gel packs. Please contact us if you need some.

Can I sleep with your products on?

No, we do not recommend this.  Please read all safety documentation before use.

The length of the Isavera Classic belt seems large. Any tips?

The belt was actually designed around a smaller person’s body, but we also designed it so it can fit all body types.  Also – once it is on – it is surprisingly less large than you may think. The excess neoprene is actually beneficial towards insulating the treated area.

Is my caliper missing the slider?

No.  Our caliper is fully functional and does not include a slider.   If you do a Google search of ‘bodyfat calipers’, you will find that its a very common caliper design.

I have used for 1 month and don' t see results. Help!

Please be patient. Our products usually take much longer than 1 month to see results.  Results truly show at 10-12 weeks.  Some users do see some initial results at around 3 weeks, but for most people it will not.  Your body has to flush out the damaged fat cells via the lymphatic system.  Unfortunately, it can take a significant amount of time.

How does the 90-day guarantee work?

We offer a 90 day money back guarantee, as long as you contact us directly.  We sell our products on many channels (ie eBay, Amazon) and they are often restricted by a 30-day guarantee.  If you have any issues, simply contact us directly.  We are willing to refund up to 90-days post-purchase.

Why does the measuring tape seem to be missing inches?

The tape measure is designed this way on purpose. This is to account for the width of the
plastic mechanism (that contours to your body). The tape is completely accurate.

Can I use the products every day for faster results?

We do not have data that supports that daily use will bring faster results.  The results are limited to how quickly you body flushes out damaged fat cells — which usually takes 10-12 weeks.  We highly recommend using the product every other day, ~3 times per week.

Using it daily also is difficult because the gel packs need to be adequately frozen.

Daily use can also cause an inflammatory response in some people, making it difficult to track results.

I see layers to the pockets. Which pocket do I use?

The outermost pocket (furthers from your skin) is designed so you can slowly adapt to the products.  We ask that you use this pocket in your first few sessions so your body can adapt.   Once adjusted, you can move the gel packs to the innermost pocket where they will be insulated by the plastic piece.   This information is explained in each product’s instructions.

Can I wear several products simultaneously?

Please do not do this unless you’re completely confident with our  products and your body’s reaction to them.   Every individuals tolerance is different.  Please make sure you’ve consulted with a physician before attempting this.

We believe this can be dangerous as it may trigger cold-induced complications such as cold urticaria (if you’re predisposed to it).

Can I take a break from using the system and then resume later on?


Each time you wear the product(s), you are targeting the top layers of subcutaneous fat cells.  Taking time off and resuming later is completely fine.   You do not have to “reset” your progress.

Frequently Asked Questions - Gel Packs

My gel pack(s) don't seem to freeze like they did in the beginning. What can I do?

It is impossible for the gel packs to freeze “less” with age.  For that to happen, they would have to have an increase in their antifreeze element (propylene glycol).


We have had numerous customers send us their gel packs, insisting that they no longer can freeze them.  In 100% of the cases, the gel packs froze completely fine within our freezers.


Gel packs freezing properly depends on where the gel packs are within the freezer (please try to spread them out), how often you’re opening the freezer, and if they are laid flat or not.


Please remember the gel packs can wick heat from each other so it is best to have them spread out.  Also make sure your freezer is set its coldest possible setting.


We can replace gel packs upon request, but please remember this is rarely a solution.


My gel packs seem to melt quickly. Is this normal?

Yes, absolutely. Fat freezing, also known as cryolipolysis, is more about cooling the skin and underlying fat to a temperature range (and maintaining it). Once the area is cooled, the gel packs serve as a mechanism to wick heat from the tissue (and maintain it at a steady temperature) while the neoprene insulates the area. Simply wear the belt as instructed. It is completely normal.

How long should be the gel packs be placed in the freezer before the first use?

We recommend 24 hours.  This is simply so you can see what they look like when they are fully frozen.  The gel packs may freeze quicker than this, but we recommend 24 hours for the first time simply so you can see how they should look when fully frozen.    They should turn a lighter color of blue and be fairly solid but also slightly flexible.

Are the gel packs different than regular gel packs?

Yes. The gel packs are formulated differently than regular gel packs. They have been designed to do three things: reach ideal temperatures (for fat cell apoptosis), wick and distribute body heat, and remain flexible when frozen. They have undergone extensive testing (with a thermocouple) to make sure they reach optimal fat freezing temperatures while avoiding risk of frostbite. They contain proprietary non-toxic ingredients.

Help. One of my gel packs has broken!

Please contact us and we will happily send you a replacement.  Small punctures can be easily fixed with packaging tape – however, we will replace anything.  Just email us at

Can I buy extra gel packs?

Unfortunately, we do not yet have them for sale. We can however look into sending extra gel packs upon request. Simply email us and we will help you out.

What should a frozen gel pack look like?

When are gel packs are fully frozen, they will be whitish in color and firm (yet slightly flexible).  They should look like this.

Why do I need to freeze for 24 hours the first time?

We recommend freezing the gel packs for at least 24 hours because this helps establish a baseline — it will show you what the gel packs will look like at their maximum freezing potential.  They should turn white and be slightly flexible.

How long do I need to freeze the gel packs between use?

We recommend freezing the gel packs at 0° F for 24 – 48 hours. You will then see what they look like fully frozen.

Because every freezer is different,  your objective is to simply get the gel packs to appear as they did after a solid freezing.  They will be blue with a whitish appearance, and slightly flexible.

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