Function Health, the 160-test membership we wrote about in November, announced $450 million today from a General Catalyst vehicle called the Customer Value Fund. It is not an equity round and no valuation is stated. The structure, as described in trade coverage, is a financing of the company's sales and marketing spend, repaid from a capped share of the value the acquired customers generate, paid only when the company is paid. In the same release the company notes two acquisitions this spring: a network for at-home blood draws, and a supplement platform. Membership is $365 a year; MRI and CT scans are available for under $1,000 at more than 200 locations. Eight months ago we described the business as a funnel — membership, flags, retest, scan. Today the funnel got its own line of credit.
Read the structure, not the number. A fund that pays a company's marketing bill and is repaid from what new members spend is a bet that each member will be worth more than it costs to acquire them — and the arithmetic of a 160-test panel is what makes that bet attractive. A healthy person tested 160 ways produces about eight out-of-range results by chance, each a reason to retest, to add a scan, to ask the app's assistant, and now, with a supplement platform in-house, to buy something for it. The financing does not need any of that to be medically useful. It needs it to be recurring. The acquisitions tell you where the recurrence will come from: the draw comes to your home, and the remedy is in the app.
This is the most honest financing in the longevity industry this year, because it says what the money is for: acquiring customers. Not research, not trials, not clinicians — marketing, repaid by members. When a company buys a supplement platform the same quarter it raises money to acquire customers for a test that flags things, the product has stopped being information. It is a loop, and the loop is the asset being financed.
The supplement acquisition is the part I would ask every member to notice. A panel that flags a value and then offers to sell you the fix has an interest in the flag. That is not an accusation; it is a structure, and structures shape advice. When a result on a membership app comes with a product attached, the question to ask is the one you would ask any salesperson: who benefits if I act on this? Then ask your own clinician, who does not.
Why it matters to a recovering optimizer. We said in November that the reference range was where the money is. Today's financing is the industry agreeing. The fund will be repaid by members who were flagged, retested, scanned and supplemented, and the healthier the member, the more of that is statistical noise. Nothing in the fundamentals requires a draw at your door. Everything in this funnel does.
When a test company buys a supplement store, every flag has a price tag. Take the flag to a clinician who isn't selling the fix.
This post reports on evidence and expert disagreement. It is not medical advice; decisions about treatment belong with you and your clinician.