Ah Spa by Ageless Humans — treatments, hours and what to know

Ah Spa by Ageless Humans is the on-site full-service spa and medspa at The Westin Lake Las Vegas Resort & Spa, open daily to hotel guests and the public. It offers traditional spa treatments plus medspa services such as IV drip therapy and neurotoxin injectables, and is open 10:00 AM–6:00 PM.
In this guide
What Ah Spa is and where to find it
Ah Spa by Ageless Humans is the resort’s branded spa and medspa, located on the 1st Floor of The Westin Lake Las Vegas Resort & Spa at 101 MonteLago Boulevard in Henderson, Nevada.
The spa operates as a public facility (guests and non-guests may use services) and sits inside the hotel’s footprint so it’s an easy walk from guestrooms, pools and the lobby.
- Location: 1st Floor, The Westin Lake Las Vegas Resort & Spa (101 MonteLago Blvd).
- Accessible to both hotel guests and the public.
- Spa sits within the resort complex near pools, fitness center and dining outlets.

Treatments and medspa services offered
Ah Spa’s menu includes both classic spa treatments and medspa procedures. On the spa side you’ll find body treatments and facials; the medspa side lists services such as neurotoxin injectables and IV drip therapy.
Examples listed on the spa’s current menu include IV drips (for example a Super Immunity Boost and Glutathione IV), injectable neurotoxins (Letybo and Botox) administered by a nurse practitioner, and body treatments such as a Longevity Full Body Treatment.
- IV drip therapies (Super Immunity Boost, Glutathione IV).
- Neurotoxin injectables administered by clinical staff (Letybo, Botox).
- Body treatments and full-body therapies.
- Hair and blonding salon services are also on the current menu.
| Service category | Examples |
|---|---|
| Medspa | IV drips, neurotoxin injectables |
| Spa | Body treatments, facials |
| Salon | Hair & blonding services |
Hours, booking and who can go
Ah Spa by Ageless Humans is listed as open daily from 10:00 AM to 6:00 PM. These are the publicly listed hours on the spa’s site.
The spa accepts appointments for hotel guests and members of the public; for medspa treatments you should expect pre-appointment screening and clinical documentation (specific policies and scheduling details come from the spa).
- Hours: Daily, 10:00 AM–6:00 PM (per the spa’s site).
- Open to both registered hotel guests and the public.
- Book treatments directly with the spa in advance to secure preferred times.
What to expect during medspa treatments
Medspa services at Ah Spa include clinician-delivered procedures. Neurotoxin injectables (for example Letybo or Botox) are listed as administered by a nurse practitioner; expect a consultation and medical screening before injections.
IV drip services are offered as specific formulations (Super Immunity Boost, Glutathione IV). These typically require arrival a few minutes early for intake and last as long as the chosen infusion; the spa provides clinical supervision for IVs.
- Clinical staff administer neurotoxin injectables; consultations and screening are standard.
- IV drips are offered in named formulas and are supervised by spa staff.
- If you have medical questions or take prescription medicines, bring a list and consult the spa team in advance.
Combining spa time with resort activities
Ah Spa sits within walking distance of the Westin’s pools, private beach and WestinWORKOUT Fitness Studio, so you can plan a spa appointment before or after pool time, a gym session or a round of golf at nearby Reflection Bay.
Many guests pair a morning fitness session with a mid-day massage or an afternoon IV therapy session followed by dinner at one of the resort’s restaurants such as Marssa Restaurant or Rick’s Café.
- Pools: two-level Nuala Pool complex (upper and lower pools) — pool access is included with the resort stay.
- Fitness: WestinWORKOUT Fitness Studio (complimentary for registered guests).
- Dining nearby: Marssa Restaurant (dinner Wed–Sat 5:00–9:30 PM) and Rick’s Café (meals across the day).

Practical tips before you go
Arrive a few minutes early for paperwork and any medical intake required for medspa services. If you’re a hotel guest, confirm whether your booking rate includes in-room Wi‑Fi or whether it’s charged separately.
If you plan pool time on the same day, note that official pool hours are seasonal and commonly listed as 9:00 AM–7:00 PM; check with the front desk or concierge for current pool and cabana availability.
- Bring ID and any prescriptions or medical history relevant to injectable or IV therapies.
- Reserve spa appointments in advance—medspa slots and clinician availability can fill quickly.
- Contact the spa or concierge for questions about booking, cancellations, and pre-treatment instructions.



