While electrostimulation acts on muscle contraction, Slim Sonic acts on fat by destocking it.
If you have a question about Slim Sonic,
you should find your answer here!
- The brand
- The products
- Refurbished products
- A problem with a module?
Our products are manufactured between France and Switzerland, in the Lake Geneva area, in order to privilege a better quality.
The name Slim Sonic comes from the compression of the words “Slim” and the patented Sonic Resonance® technology.
Unlike the products offering you miracles available on the internet and on teleshopping, it is you who makes the effort. Our products just help you to see results faster.
Slim Sonic, these are modules equipped with aluminum plates that allow to destock fat in a massive and targeted way.
Thanks to ultrasound, while losing fat in a targeted way, you firm up the skin, smooth out the dimples (cellulite) and thus gain tone.
For the moment, our products are not available in stores, but you can test our modules at our partners (physiotherapists, gyms…).
Our modules destock between 350 kcal for the Sonical and 1440 kcal for the Combo Pro L.
You can of course combine the modules for a more massive destocking, on several parts of the body.
Our products are in no way dangerous, we use the same method as for ultrasound, but at a lower frequency to target fat cells.
During use, you may feel a temporary whistling sound in the ear and a warm sensation.
Three of our modules are available for rental: M-720, L-880 and L-1160 in France, Switzerland, Belgium, Germany and Luxembourg.
To do this, go to the rental section of our store.
The results of our studies, which you can find on our Scientific Validations page , show a reduction in abdominal circumference, hip circumference, weight, BMI, body fat and blood sugar. On average, Slim Sonic users lose between 5.5 cm and 6.7 cm of waistline in 6 sessions and 2.5 cm to 3 cm for each thigh, saddlebags, etc.
Scientific studies conducted in the past confirm these results. In particular, the research of Dr. Hausswirth, director of INSEEP research from 2012 to 2016, published in the American journal Frontiers in Physiology in October 2019.
It should be noted that the loss achieved also depends on the mass of fat to be destocked. For the sportsman, the action of the use of Slim Sonic is also beneficial: For the sportsman seeking to improve his performances, Slim Sonic makes it possible to bring a complementary source of energy which is directly placed at the disposal of the muscles. This contribution in energy is additional fuel, the sportsman will thus be able to consume more and thus gain in performance.
For the athlete looking for muscle definition (dryness for bodybuilders for example), he can target the areas to be destocked and in a few sessions, lose the fat on the targeted area to obtain the desired muscle definition.
L-M indicate the size of the module and therefore the contact surface, which is important for representing the area to be treated.
720-880-1160 are the numbers that accompany the model letter. They simply correspond to the quantity of kcal removed in 40 minutes (Reminder: 1 kg of fat corresponds to 9,000 kcal).
Concerning Sonical, it is a module containing only one plate for a destocking of 400 kcal in 40 min.
Sonical is a Slim Sonic product containing only one plate. By owning several Sonicals (see our Sonical DUO and Sonical TRIO offers) you can treat several areas, as you wish.
To equal the destocking of our M and L modules, you can start on our SONICAL DUO or TRIO packs.
We strive to provide you with the best quality product possible.
Our reconditioned products have been used, but are still quite usable for everyday use.
To extend the warranty induced at the time of the purchase of your module (12 or 18 months depending on the model), you can add a warranty extension to benefit from an accompaniment in case of problem throughout the duration of your choice.
Reconditioned modules come and go depending on the period and are therefore in limited quantity.
If you want a specific module, we advise you to order it as soon as possible. The product will be reserved for you as soon as you have paid for the order and we have received full payment after authorization.
Please note that some payment methods are slower and that the availability of a refurbished product is not guaranteed until we receive your payment in full.
Reconditioned modules are used modules that have undergone a rigorous reconditioning process before being released for sale.
Each of the reconditioned modules :
- is subjected to battery testing and careful inspection upon return, with replacement of each defective module identified during testing, before being added to the inventory of saleable refurbished products.
- is through a strict cleaning and inspection procedure.
- is reconditioned with the appropriate elements available as on a new module: manuals, cables, new boxes, etc.
Repackaging procedures follow the same basic technical rules as finished product testing procedures.
- To savings on purchase
- To fully operational products, even in second hand
- The assurance that the modules meet the standards in force, as when purchasing a new module
As with any product, Slim Sonic may not work as well in some cases:
The hormonal changes generated by menopause can temporarily block the transformation of fat. If this is the case, wait until the end of this period to repeat your treatments. As an indication, the success rate, even during this period, is 80%.
For people with sensitive ears, SLIM SONIC may be disturbing. If this is the case, we advise you to forego the treatment.
Some antidepressant treatments can also block the transformation of fat. However, we note that in 90% of the cases, the treatments with SLIM SONIC work.
Cortisone treatments can cause weight gain and water retention in some patients. With a SLIM SONIC treatment, you can maintain your body shape, but it is more difficult to reduce your abdominal circumference.
Yes, it is quite possible to use a module just before your session, so you can consume the destocked calories as soon as possible.
Each body and morphology being different, it is difficult to guarantee a time frame to see the first results.
This will depend on the module you choose, your physical activity and your diet.
Due to the low added value of the application, we made the choice to remove it. Either in a definitive way, or by reworking it in depth to offer you a tool with a real added value.
Of course you can use your device by pressing the Start button. The session will start after 40 seconds.
It all depends on your weight and your beauty goals.
Diets of any kind can help you lose weight, but not always where you want it. Orange peel skin and fat located in certain areas of the body (saddlebags, buttocks, thighs) are insensitive to diet and exercise. Sonic Resonance technology is particularly effective in overcoming this problem. The ideal is obviously to associate your Slim Sonic modules with physical activity (during or just after wearing your module) as well as a varied and balanced diet for optimal effectiveness.
It is not recommended to use Slim Sonic :
- During the entire pregnancy period and at least 6 months after delivery.
- If you are sensitive to tinnitus
- If you wear a Pace Maker.
- If you wear a copper IUD or have metal plates or screws in the treated areas.
- If you have cancer or metastasis.
- If you have skin lesions in the treated areas.
- If you have an unhealed fracture in the treated areas.
- If you have recently had a transplant.
- If you have bone prostheses in the treated areas.
This list is not exhaustive. If you have any serious medical condition not listed above, we advise you to consult a doctor.
You can do all kinds of activities with our modules.
Whether it’s for sports, everyday physical activity or for portable use on the move, your imagination is your only limit.
It is imperative to respect the daily energy balance during a cure. Slim Sonic combined with your diet must be equal to your energy needs.
For example, with an L-1440 session, you will de-store 1440 Kcal in 40 minutes. That is to say, you will be providing your body with 1440 Kcal.
If your daily requirement is 2440 Kcal, by using Slim Sonic, you will be able to bring only 1000 Kcal by your daily food in order to be at 100% of your daily requirement.
Little extra: everything you burn during your physical activity, you can re-consume.
For example: an energy expenditure of 40 minutes on a treadmill is equivalent on average to 300 Kcal. These burned calories can be added to your diet.
If your daily requirement is 2440 Kcal, your physical activity consumes 300 Kcal and you use the 1440 model, you will be able to eat the equivalent of 1300 Kcal to reach 100% of your daily requirement.
Slim Sonic is used within the framework of a physical activity so that part of the released fats are consumed.
Physical activity promotes vasodilation and acceleration of lymphatic circuits, which improves results.
If you wish to treat the belly, all our modules are adapted: Sonical, M-720, L-880, L-1160.
For thighs, buttocks and saddlebags, use the smaller Sonical and M-720 modules.
For the arms, knees, calves and pectorals, we recommend using Sonical.
Depending on the country you are in, payment methods may vary.
In France, Italy, Luxembourg, Spain, Portugal, Belgium, Germany, the Netherlands, Austria and Ireland, you can pay by card, bank transfer, PayPal and in installments with Alma.
In Switzerland, you can pay by card, bank transfer, PayPal and in several instalments with HeidiPay.
For other countries, payment is only possible by credit card, bank transfer and PayPal.
Payment in installments is available for some countries:
- Alma is available in France, Italy, Luxembourg, Spain, Portugal, Belgium, Germany, Netherlands, Austria and Ireland for payments in 2, 3, 4 and 10 times from 50 to 3200 €.
- PayPal can offer you a payment solution in 4 times in France from 30 to 2000 €.
- HeidiPay is available in Switzerland for payments in 3, 4, 6 and 10 times up to 5’000 CHF.
Once at the last step of your order, you can select the payment in several times thanks to our partner following your choice. You will then be redirected to their site.
Slim Sonic accepts the following payment methods:
Alma (Payment in installments)
HeidiPay (Payment in installments)
Delivery is free in France and Switzerland from 150 CHF/€.
The delivery is made by Swiss Post in Switzerland.
For France and the rest of the world, shipping is provided by Colissimo.
Once your order has been placed, we will ship your package within 10 working days.
You will receive a tracking from our logistics partner on your mailbox to follow the progress of your order.
All our products are delivered internationally. If you have any problems with your order, please do not hesitate to contact us, we will find the best solution for your order together.
All our contact details are available on our contact page.
You can contact the customer service by email at
and by phone from Monday to Friday from 8am to 7pm at +41 (0)22 920 25 25 in Switzerland or +33 (0)1 83 64 04 96 in France.
Calling costs may apply if you call the number that does not correspond to your country.
The chat is open every day:
- Monday to Friday from 10 to 12 am and from 1 to 7 pm,
- the WE from 9 to 12 am and from 5 to 8 pm.
A problem with a module?
Before sending a product for service, please check that the module is not out of battery.
If the problem persists, you can make a request by filling in the form on our After-Sales page.
Once we have received your request, an advisor will contact you to assist you.
Please allow about 10 days after receipt for analysis by our technical department and repair.
Have you placed an order and changed your mind?
Whatever your reasons, you can return your module to us within 14 days of delivery, as long as it has not been used.
To do this, please contact us by filling in the form on our Contact page.
We repair all modules, whether under warranty or not.
You can make a service request by filling in the form on our After-sales service page.
An advisor will contact you to provide assistance and, if necessary, a quotation.
You can choose to accept or refuse it.
All our new products have a 2 year warranty. The reconditioned products as new are guaranteed 18 months and the little used 12 months.
After the 14-day cooling-off period, we cannot offer satisfaction or reimbursement.
However, if your module has a problem, you can send it to us for service.