The controversial tech millionaire obsessed with anti-aging is undergoing $25K gene therapy not approved by the FDA

• Bryan Johnson travels to a remote Caribbean Island for one of his anti-aging treatments, he says.
• The gene therapy costs $25,000 a treatment; it's not FDA-approved.
• "I am now a genetically enhanced human," Johnson wrote on Instagram.

Bryan Johnson has added another expensive treatment to the routine he hopes will turn back his biological clock.