Terms & conditions

SLIM – Instant Fat Reduction Co., Ltd., 283/6 Home Place Office Building, Room 0104, 1st Floor, Soi Sukhumvit 55 (Thonglor), Sukhumvit Road, Khlong Tan Nuea, Watthana, Bangkok 10110, Thailand. Tax ID 0105567140257. Phone +66 99 612 9158, info@slimbkk.com. Our studios: SLIM | Sukhumvit 24 and SLIM | Thonglor 13.

You can book online through Fresha, on LINE @SLIMBKK, on WhatsApp or by phone. Your booking is confirmed once you receive our confirmation. Online bookings need no prepayment.

You can reschedule or cancel through the link in your Fresha confirmation, on LINE or by phone. Please give us at least 24 hours' notice so we can offer the slot to someone else. If you are running late, let us know — we keep your slot where we can, but your session may need to be shorter so the next client is not kept waiting.

Our current prices are published on this website in Thai baht and include 7% VAT. You pay at the studio after your session, by cash, card or PromptPay.

SLIM is a non-medical aesthetic service. Before your first session we go through your health history with you. Some conditions mean a treatment isn't suitable; they are listed on each treatment page. Please tell us before booking about any condition that could matter. In some cases we ask for a short note from your doctor, and we may decline a treatment if we cannot rule out a risk.

Lose 2–8 cm total in your SLIM Body trial — or your money back. This guarantee is exclusive to your SLIM Body trial session. We measure your circumference at the same marked points, under the same conditions, immediately before and immediately after that session. “Total” is the sum of all measured areas. You see both numbers before you leave. If your total is below 2 cm, we refund the full trial price right away, in the studio, the same way you paid. The trial price and the guarantee apply once per person — to your first SLIM Body session.

Package prices are discounted rates, calculated for the full series of sessions in the package. The sessions included, the validity period and what applies if you stop before completing the package are set out in writing when you buy it, in line with Thai consumer protection law.

We measure your result in the studio and show it to you. How a result holds over time depends on your lifestyle — food, movement, sleep and hydration — and on the number of sessions you have.

How we handle your data is described in our Privacy policy.

If something is not right, please tell us first — by phone, LINE or email. You can also contact the Office of the Consumer Protection Board (OCPB) in Bangkok.

These terms are governed by Thai law.