Billion Onsen

Kuala Lumpur's onsen and wellness destination.

Billion Onsen is a modern sanctuary for healing, recovery and longevity, open 24 hours a day. With the Billion Onsen app, you can reserve treatments, manage your membership and plan your visit to any of our locations across Asia. Kuala Lumpur flagship or our new 40,000 sq ft wellness spa center in Johor Bahru.

BOOK IN SECONDS

- Browse our full menu of 47 treatments and reserve your preferred date, time and therapist. Onsen entry, signature massages, head spa, facials, advanced aesthetics, body sculpting, brows and lashes, manicure and pedicure — all in one place.

RELAX & RECOVER

- Our Johor Bahru flagship introduces five recovery modalities new to Malaysia: hyperbaric oxygen chamber, red light therapy,snow room and practitioner-led Traditional Chinese Medicine. Book them alongside your onsen and massage ritual.

MANAGE YOUR MEMBERSHIP

- Members can view their credit balance, track usage, redeem guest passes and enjoy priority booking. Founding Members receive additional benefits.

ONSEN & FACILITIES

- Sixteen onsen pools across two locations — magnesium salt, silky water, jacuzzi and cold plunge — plus sauna and Himalayan salt room. Every visit to Billion Onsen includes complimentary dining.

ONE STANDARD OF CARE

- Since opening in 2023, Billion Onsen has served more than 100,000 guests and completed over 45,000 treatments, with a 4.8-star Google rating. Over 100 therapists, trained across multiple modalities, and an operations team with 15+ years in luxury hospitality.

GOOD TO KNOW

- Billion Onsen is suitable for guests aged 16 and above

- Advance booking recommended

- Please give at least 4 hours' notice to change or cancel a treatment

- Check in 15 minutes before your first appointment

- Wellness, reimagined for the way you live now.

What's New (v1.0.0):

- Welcome to the Billion Onsen app. Book onsen, spa and longevity treatments at any available location, manage your membership credits and guest passes, and enjoy priority booking as a member.