Instant fat reduction
A slimmer silhouette you can see and measure the same day.
Instant fat reduction & body contouring in Bangkok
Lose 2–8 cm totalin one session.
Or your money back.
- Painless, non-invasive
- 45 minutes
- Rated 4.9 on Google
2–8 cm
Total reduction in just one session. Or your money back.
Why SLIM
Visible results from your very first session.
Slimmer contours, firmer skin, activated muscles — in one relaxing 45-minute treatment.
Our money-back guarantee
Lose 2–8 cm total in your SLIM Body trial — or your money back. Measured immediately before and after your session.
European technology
Certified European technologies work together in one session — fat cells release their stored fat, your muscles are activated, your skin is firmed.
Painless, zero downtime
No needles, no surgery, no recovery time. You relax for 45 minutes and go straight back to your day.
Treatments
Choose your treatment
Belly, waist, thighs and arms — SLIM Body also helps improve the appearance of cellulite.
SLIM Body
Our signature treatment: fat reduction, muscle activation, and skin firming in one 45-minute session.
Trial฿3,990
SLIM Flow
Get the most out of your SLIM Body results. 25 minutes of gentle pressure waves support your body's natural clearing process.
Add-on฿1,990
SLIM Face
A lifted, more defined face — without needles. Gentle muscle stimulation for a firmer, more sculpted look.
Single session฿2,490
Lift & Glow
LED light therapy with a serum matched to your skin — marine collagen, salmon PDN, or anti-ageing. Deep hydration, firmer-looking skin, an instant glow.
On its own฿2,490
Add-on฿1,990
Not sure where to start? The SLIM Body trial is where almost everyone begins.
How it works
How instant fat reduction works.
Advanced European technology helps fat cells release their stored fat, activates your muscles and supports skin quality — in one painless, relaxing session.
- 01 Personalised for you. Your therapist positions the pads to suit your body and goals.
- 02 Your treatment begins. Targeted light and gentle muscle stimulation work together while you relax.
- 03 Fat cells shrink. Light energy helps fat cells release stored fat and shrink, making the fat layer thinner.
- 04 Your body takes it from here. Your body naturally processes the released fat over time.
Allow 60 to 75 minutes for your first visit — 45 of them relaxing on the treatment bed.
Book your trial — choose your studio, then book on our booking page in a new tabResults
Real clients. Real results.
Real clients, measured before and after — imagine your own.
SLIM Body · After 1 session · Total −9 cm 
SLIM Body + SLIM Flow · After 1 session · Total −10.3 cm 
SLIM Body + SLIM Flow · After 3 sessions · Total −21.5 cm
Result 1 of 3, abdomen
Reviews
What our clients write
4.9· 350+ reviews on Fresha
Read every review on FreshaToday I had my first treatment at SLIM, Sukhumvit 24. The place looks modern and fresh, and the combination of bright colors and warm wooden tones creates a very welcoming atmosphere. The staff were friendly and professional, and the therapists explained everything clearly and took great care of me. The dimmed lights and soft music made the treatment , which is indeed painless- very relaxing. Seeing a result of 6 cm after the session was impressive — I already booked the next session.
Great experience! The staff were very friendly and explained everything clearly before the treatment. I felt well informed and comfortable throughout the process. The treatment was successful for me, and I lost just over 17 cm. I highly recommend SLIM Thonglor!
This was such a great experience. Amy explained the process thoroughly and asked if we had questions. The treatment was surprisingly relaxing, even with a higher setting. I lost a total of 14 cm, and would highly recommend it.
I can't say enough good things about Slim! I noticed a diffence after one session, but, after just 2 sessions I noticed a really major difference. My clothes fit better and the areas I struggled with for years finally slimmed down. The staff is very knowledgeable and walked me through everything. They made made me feel comfortable. I booked this while on vacation from Texas and I highly recommend this business.
The staff could not be nicer. I saw great results after my first treatment. Highly recommend trying this treatment I lost 11.8 cm after first treatment
I had my first session at SLIM Thonglor and it was a great experience. The staff was very kind and explained everything clearly, which made me feel comfortable. The treatment itself is interesting, with sensations like vibration, heat, and muscle stimulation. I saw immediate and real results in the measurements. Of course, it’s important to maintain them with a healthy diet and regular exercise. I recommend it if you’re looking for a non-invasive way to improve body shape.
The staff are really friendly! Facilities are clean and the music is relaxing. When having the consultation everything is explained to you and your measurements are taken so that you can see the before and after results. Honestly it's not painful. You need 1 minute to adjust to the frequency and after that the machine does all the work. Definitely saw immediate results and would recommend.
It’s my first time Slim and i absolutely enjoyed my experience. The arms and belly are more tightened after the session and I was very impressed. Highly recommend anyone to try this.
No pain, just a little tickling. The staff were friendly and kind, and they provided great advice. I could already see results after the first session. The clinic was very clean and the service was excellent. Highly recommend.
The staff could not be nicer. I saw great results after my first treatment. Highly recommend trying this treatment I lost 11.8 cm after first treatment
I had my first session at SLIM Thonglor and it was a great experience. The staff was very kind and explained everything clearly, which made me feel comfortable. The treatment itself is interesting, with sensations like vibration, heat, and muscle stimulation. I saw immediate and real results in the measurements. Of course, it’s important to maintain them with a healthy diet and regular exercise. I recommend it if you’re looking for a non-invasive way to improve body shape.
The staff are really friendly! Facilities are clean and the music is relaxing. When having the consultation everything is explained to you and your measurements are taken so that you can see the before and after results. Honestly it's not painful. You need 1 minute to adjust to the frequency and after that the machine does all the work. Definitely saw immediate results and would recommend.
It’s my first time Slim and i absolutely enjoyed my experience. The arms and belly are more tightened after the session and I was very impressed. Highly recommend anyone to try this.
No pain, just a little tickling. The staff were friendly and kind, and they provided great advice. I could already see results after the first session. The clinic was very clean and the service was excellent. Highly recommend.
Today I had my first treatment at SLIM, Sukhumvit 24. The place looks modern and fresh, and the combination of bright colors and warm wooden tones creates a very welcoming atmosphere. The staff were friendly and professional, and the therapists explained everything clearly and took great care of me. The dimmed lights and soft music made the treatment , which is indeed painless- very relaxing. Seeing a result of 6 cm after the session was impressive — I already booked the next session.
Great experience! The staff were very friendly and explained everything clearly before the treatment. I felt well informed and comfortable throughout the process. The treatment was successful for me, and I lost just over 17 cm. I highly recommend SLIM Thonglor!
This was such a great experience. Amy explained the process thoroughly and asked if we had questions. The treatment was surprisingly relaxing, even with a higher setting. I lost a total of 14 cm, and would highly recommend it.
I can't say enough good things about Slim! I noticed a diffence after one session, but, after just 2 sessions I noticed a really major difference. My clothes fit better and the areas I struggled with for years finally slimmed down. The staff is very knowledgeable and walked me through everything. They made made me feel comfortable. I booked this while on vacation from Texas and I highly recommend this business.
Trial offer
Start your transformation today.
฿3,990Trial session
The complete SLIM Body experience — with our money-back guarantee.
What's included
- Personal consultation & goal setting
- Body composition analysis to personalise your programme
- Full 45-minute SLIM Body treatment
- Your results measured before you leave
- Backed by our money-back guarantee
FAQ
Good to know
Simple: lose 2–8 cm total in your SLIM Body trial — or your money back. We measure your circumference at the same points immediately before and after your session, and the total is the sum of all measured areas. You see your result before you leave. This guarantee is exclusive to your trial session.
Visit us
Body contouring studios in Sukhumvit 24 & Thonglor
Sukhumvit 24 near BTS Phrom Phong, Thonglor 13 near BTS Thong Lo.
SLIM | Sukhumvit 24
- 89 Sukhumvit 24, Galeri 24, Unit 205, 2nd FloorKhlong Tan, Bangkok 10110Easily reached via BTS Phrom Phong.
- Open daily 09:00–21:00
SLIM | Thonglor 13
- 283/6 Home Place BuildingThong Lo, Watthana, Bangkok 10110Easily reached via BTS Thong Lo.
- Open daily 10:00–19:00