Hydrogen, the smallest molecule in the universe, is big news if you’re seeking optimal health before or after a procedure. Since international research studies found that inhaling a safe and inert form of the gas can counter the negative impacts of oxidative stress, there has been a lot of buzz about its therapeutic potential. The science seems simple: tiny hydrogen molecules can penetrate body cells as smart scavengers, seeking out oxygen free radicals and neutralising their damage by forming water (H2O). Suhaku, Atsue Morinaga’s Japanese wellness space in South Kensington, offers pioneering treatments tailored for stress release, anti-ageing and computer overuse, as well as anti-inflammation and detox. You’ll slumber on a treatment bed, inhaling hydrogen through a nasal cannula while a therapist works upwards from your feet, stimulating acupressure points. Once roused from a supernatural serenity, you’ll feel lighter, brighter and energised, yet primed for the deepest of restorative night’s sleep. Home-use hydrogen inhalation devices are available for aficionados. From £50;