Six Senses London opened in the restored Whiteley building in Bayswater in March 2026, and in June it added a longevity clinic run by HUM2N, a physician-led private medical provider, in what the partners called the first arrangement of its kind between a global luxury hotel brand and a longevity provider in the UK. Upstairs, doctors and blood tests. Downstairs, a magnesium pool, a cryotherapy chamber and a lounge full of compression boots and red light.
This review asks where the hotel ends and the medicine begins, what each part costs, and which of the treatments have evidence behind them.
The question: Do I need a longevity retreat, or just a good doctor and a comfortable hotel?
I like the idea of combining a city break with something useful for my health.
Six Senses London has taken that quite far, with its own medical-wellness offering through HUM2N, alongside cryotherapy, red light treatments and various recovery technologies.
But I’m interested in where the hotel experience ends and actual medicine begins.
If I want a thorough health assessment, would I be better off booking a consultation with a specialist and staying at a nice hotel somewhere nearby? What additional value does having everything under one roof provide?
Perhaps the most important part isn’t the technology at all. It’s having a doctor who can explain the results and follow up six months later.
That would be more convincing to me than another expensive treatment promising to recharge my cells.
DailyStoke has not stayed at Six Senses London or used the HUM2N clinic; this review is based on the hotel’s spa menu, HUM2N’s announcements, the Care Quality Commission register, published research and independent reporting.
Verdict: 3.8/5. Six Senses London is a strong city wellness hotel with a genuinely useful idea attached: a doctor-led clinic you can return to, rather than a one-week retreat you leave behind. The spa and recovery lounge are fairly priced by London standards and fun to use. But the clinic’s prices are not published, its regulatory status at this address is something to confirm rather than assume, and several headline treatments, notably IV NAD+ and ozone, have little or no evidence for longevity.
Six Senses London at a glance
- Operator: Six Senses (IHG Hotels & Resorts); clinic operated by HUM2N
- Location: The Whiteley, Bayswater, London
- Opened: hotel March 2026; HUM2N Longevity Medical Clinic June 4, 2026
- Rooms: 109, plus 14 branded residences
- Rates: Superior Room from about $1,021 or 180,000 IHG One Rewards points a night (The Points Guy, May 2026)
- Spa: 2,300 square meters, 22-meter lap pool, magnesium pool, cryotherapy chamber, flotation pod, Biohacking Recovery Lounge
- Clinic services: blood diagnostics, personalized longevity programs, IV therapy including NAD+, hyperbaric oxygen, hormone optimization, ozone therapy
- Who can use the clinic: hotel guests, London residents, business travelers and Six Senses Place members
- Clinic prices: not published
- Firsthand: not visited; research-led
The Whiteley, the Spa and the Members’ Club
The hotel occupies part of a Grade II-listed former department store dating from 1883, redeveloped by Foster + Partners. According to Spa Business, the spa covers 2,300 square meters on one floor below the hotel, built around a 22-meter lap pool, with a magnesium pool, cold plunge, steam room, Finnish sauna, bio sauna, 13 treatment rooms and a 325-square-meter gym.
There is also Six Senses Place, a members’ club with its own bar, restaurant and co-working space. Annual membership runs from £3,000 to £37,000, and hotel guests are honorary members.
That context matters. HUM2N is one strand of a much bigger wellness and social product, and most guests will experience the spa, not the clinic.
Who Runs HUM2N, and Is It Regulated?
HUM2N was founded by Dr. Mohammed Enayat, who is its medical director, and describes itself as a physician-led longevity healthcare provider. Its flagship clinic is in Chelsea; Six Senses London is its second London site. The clinic officially opened on June 4, 2026, according to Travelling for Business, offering “advanced diagnostics, personalised longevity programmes and continuous medical oversight,” with treatments including hyperbaric oxygen, cryotherapy, IV NAD+ and ozone therapy.
In England, doctors providing private medical services generally need to register with the Care Quality Commission. The CQC register lists Hum2n Ltd as a provider at 35 Ixworth Place in Chelsea. Its Hum2n location, inspected as an independent doctor service in October 2022, was rated Good overall, with “Requires improvement” for the Safe category; that location listing is now marked archived. When we checked in October 2026, we could not confirm from the register whether the Bayswater clinic is listed as a location in its own right. Ask HUM2N directly before booking.
One thing CQC registration does not mean: that every treatment offered has been shown to work. The regulator inspects whether a service is safe, effective, caring, responsive and well led. It does not certify hyperbaric oxygen as anti-aging or IV NAD+ as rejuvenating.
Clinic or Spa? Who Sells What
The biggest source of confusion is that “wellness screening,” “biohacking” and “longevity” appear on both sides of the building.
| Service | Provided by | What it is | Price |
|---|---|---|---|
| Wellness Screening (45 min) | Six Senses spa | Non-invasive biomarker check leading to a treatment or program recommendation | £145 |
| Body composition and consult (30 min) | Spa recovery lounge | Body composition scan with discussion | £100 |
| VO2 max test (45 min) | Spa recovery lounge | Cardiorespiratory fitness test | £150 |
| Blood diagnostics, hormone assessment | HUM2N clinic | Physician-led testing and interpretation | Not published |
| IV therapy, NAD+, hyperbaric oxygen, ozone | HUM2N clinic | Medical treatments under the clinic | Not published |
Spa prices are from the Six Senses London spa menu, checked October 2026; the menu is undated.
The spa screening is a lifestyle tool. It is not a medical assessment, and it should not be treated as one. If you want a doctor to look at your blood results, you need the clinic, which means a separate booking with a medical provider and, in all likelihood, a separate set of records.
Six Senses London Biohacking Lounge: What the Evidence Supports
Here is how the main treatments on both sides of the building stand up. We have classified each against the specific claim it is usually sold on.
| Treatment | Price | Evidence | Our classification |
|---|---|---|---|
| Whole-body cryotherapy | £90 (15 min slot) | A Cochrane review by Costello et al. (2015) found very low-certainty evidence for muscle soreness; a 2025 meta-analysis by He et al. found modest changes in some inflammatory markers | Insufficient evidence for recovery; promising but preliminary for inflammation markers |
| Red light bed | £75 (30 min) | Established for one use, preventing oral mucositis in cancer care with set protocols (Zadik et al., Supportive Care in Cancer, 2019); no good evidence of whole-body rejuvenation | Insufficient evidence for anti-aging claims |
| PEMF | £80 (30 min) | No convincing evidence for general wellness or longevity | Insufficient evidence |
| Compression boots | £40 to £100 | Feels good after training; we found no evidence of long-term benefit | Subjective wellness benefit |
| EMS | £145 (60 min) | Used in rehabilitation; no replacement for training | Insufficient evidence for longevity |
| Flotation pod | £100 to £180 | Relaxation | Subjective wellness benefit |
| VO2 max test | £150 | A well-established measure of cardiorespiratory fitness | Established for a defined indication (fitness assessment) |
| Hyperbaric oxygen (clinic) | Not published | Established in hospitals for conditions such as decompression sickness. The main “anti-aging” trial, Hachmo et al., Aging, 2020, gave healthy adults over 64 sixty sessions (35 enrolled, 30 completed) with no control group and reported longer telomeres in some blood cells; three authors worked for AVIV Scientific, a commercial company | Plausible mechanism, uncertain benefit (for elective longevity use) |
| IV NAD+ (clinic) | Not published | The main human infusion study, Grant et al., Frontiers in Aging Neuroscience, 2019, was an industry-funded pilot of 11 men that measured blood levels, not health | Insufficient evidence |
| Ozone therapy (clinic) | Not published | US federal regulations describe ozone as “a toxic gas with no known useful medical application” (21 CFR 801.415) | Insufficient evidence, with safety questions |
Two points stand out. First, the spa’s recovery kit is mostly harmless, moderately priced and enjoyable, and you should buy it on those terms. Second, the clinic’s more medical-sounding treatments are the least supported for longevity. The Six Senses Ibiza RoseBar review goes further into IV and ozone programs, and our piece on near-infrared therapy explains why red light results depend so much on the dose and the condition.
Six Senses London Prices: Rooms, Programs and Treatments
| Item | Price | What it covers | Source |
|---|---|---|---|
| Superior Room | from about $1,021 a night | Room only; breakfast about $65 per person | The Points Guy, May 2026 |
| Sleep program | £978 (2 days) to £2,185 (6 days) | Per person; the menu does not say a room is included | Spa menu |
| Detox program | £875 (2 days) to £2,542 (6 days) | Per person; “non-invasive yogic cleanse” | Spa menu |
| Fitness program | £1,287 (2 days) to £2,988 (6 days) | Per person | Spa menu |
| Contrast bathing suite | £150 | 45 min, infrared and ice bath | Spa menu |
| HUM2N consultations and tests | not published | Clinic booking | HUM2N |
So a two-night stay with the two-day Sleep program costs roughly the room rate twice over plus £978 per person, before any clinic work. The “Detox” program is a yoga-and-treatments package, not a medical detox, and the US National Center for Complementary and Integrative Health’s verdict on detoxes and cleanses, that the evidence for removing toxins is weak and long-term studies are lacking, applies here as everywhere.
Data, Follow-Up and the Six-Month Question
The best argument for HUM2N inside a hotel is the one in our opening: continuity. HUM2N’s founder frames it as “a long-term relationship with your health, supported by continuous medical oversight,” and the clinic is open to Londoners, not just guests. That is a different model from a retreat, and potentially a better one, if the follow-up is real.
Before booking, ask:
- Which tests are recommended for me, and why? Which would a doctor act on?
- Who sees an unexpected result, and will you refer me to an NHS or private specialist?
- Will my results be shared with my GP, and can I have them in a standard format?
- Who holds my records, the hotel or HUM2N, and how do I request deletion within legal limits?
- What does a follow-up at three or six months cost, and what will be re-measured?
Our guide to longevity clinic tests explains which biomarkers tend to change medical decisions and which mostly produce numbers.
Is It Better Than a Good Doctor and a Nice Hotel?
For many people, honestly, no. A thorough private health assessment from a London physician, followed by a stay at any comfortable hotel, delivers the medical part. What Six Senses adds is convenience, a very good spa and the chance to make health a habit you return to, in a city you might live in.
That makes it best for:
- Londoners and frequent visitors who might use the clinic over months rather than once.
- Spa lovers who want a serious hydrothermal and recovery circuit in central London.
- Not ideal for anyone looking for a structured, supervised program in the mold of Chenot Palace Weggis or a medical retreat from our European longevity retreats comparison.
For other hotels built around clinics or recovery technology, see our guide to luxury hotels with longevity clinics and our firsthand Equinox Hotel New York review.
London’s Longevity Hotels in 2027
This year Six Senses London is a fixture of the city’s wellness scene. The brand’s first UK hotel opened at The Whiteley in Bayswater in March 2026, and HUM2N’s Longevity Medical Clinic followed on June 4, 2026, open to guests, London residents and members of Six Senses Place, whose annual fees run from £3,000 to £37,000. The model is clinic-as-neighbor rather than retreat: the clinic sells ongoing care, while the spa sells recovery technology by the session. The rules have not moved with the marketing. Private doctors in England still register with the Care Quality Commission, which inspects how a service is run rather than certifying that a given anti-aging treatment works, so the questions about evidence and follow-up are the same in 2027 as they were on opening day.
Six Senses London HUM2N FAQs
Can you use the HUM2N clinic without staying at Six Senses London?
Yes. HUM2N and Six Senses say the clinic is open to hotel guests, London residents, frequent business travelers and Six Senses Place members.
How much does HUM2N at Six Senses London cost?
HUM2N did not publish prices for the Six Senses clinic when we checked in October 2026. Spa services are priced separately on the hotel’s spa menu, for example £90 for cryotherapy and £145 for the spa’s Wellness Screening.
Is the Six Senses spa Wellness Screening a medical test?
No. It’s a non-invasive spa assessment used to recommend treatments or programs. Medical blood tests and their interpretation come from the HUM2N clinic, a separate provider.
Is HUM2N regulated by the CQC?
Hum2n Ltd appears on the CQC register as a provider with a Chelsea address. We could not confirm from the register whether the Bayswater clinic is listed as a separate location, so ask the clinic for its registration details.
Does IV NAD+ slow aging?
There is no good human evidence that it does. The main infusion study was a small industry-funded pilot that measured blood levels, not health outcomes. Speak to your own doctor before booking any infusion.
