Vital Stack is a free, science-backed supplement app built for adults who are serious about longevity — and done with the guesswork. Browse 76+ supplements with plain-language science cards, dosing and timing guidance, and direct shop links. Get AI-powered recommendations personalized to your goals, age, and health conditions. Track your personal stack, see exactly what it costs per day, month, and year, and find out what you're missing. Beta is live now. Open in Chrome for best experience.