Know what you’re buying. Then decide.

Longevity scans, tests and therapies are expensive, unfamiliar and partly medical. These guides explain what each one is, what public health agencies say, and what to ask before you hand over a card. General information only, not medical advice.

• Full-body MRI: what to ask before you bookWhat a whole-body MRI scan is, what it can and can’t tell you, what US screening guidance says, incidental findings, and the questions to ask a scan center before you pay.
• Longevity clinic memberships: what’s included and what to askHow longevity and concierge-style programs are usually structured, what an annual fee may or may not cover, and the questions to ask before you sign up.
• Hyperbaric oxygen: clinic vs. wellness studioWhat the FDA says hyperbaric chambers are cleared for, how a hospital hyperbaric unit differs from a wellness studio, and what to ask before a session.
• IV and NAD+ drips: what to knowIV drips are a medical procedure. Who should be ordering and supervising one, what to ask about ingredients and screening, and how prices are quoted.
• DEXA and VO2 max testsWhat a DEXA scan and a VO2 max test measure, how they differ from medical versions of the same tests, and what to ask about the report you get.
• Price indexLow, median and high published prices for scans, tests and therapies across the US, recalculated from live listings.

Ready to compare? Explore the directory to see who each business says is in charge, what it publishes about prices, and where to check reviews.