Clinician-guided longevity care built around how your body is changing. Personalized treatment from US-licensed providers to support your energy, recovery and resilience, today and for years to come.

Three prescription options, each working on a different part of how your body ages. A licensed provider helps you choose where to start.
A coenzyme every cell uses for energy and repair. Levels tend to fall with age, and injections supplement your body's own supply.
A peptide that signals your body to release more of its own growth hormone, which declines with age. May support sleep quality, recovery and lean muscle.
A growth-hormone-releasing peptide your provider may consider to support healthy body composition. Prescribed only when medically appropriate.
Compounded medications are not FDA approved and have not been reviewed by the FDA for safety, effectiveness or quality. Prescriptions are written only when medically appropriate by a licensed provider. Individual results vary.
Longevity care does not mean doing everything at once. Pick the change you want to feel first, and your provider builds your plan from there, adjusting it as your body and goals change.
For afternoons that fade early and a mind that feels foggier than it used to.
For lighter sleep and workouts that take longer to bounce back from.
For lean muscle that is harder to hold onto and midsection changes that crept in.
For staying ahead of the changes that come with age, before they slow you down.
Many of the changes you feel with age, like lower energy, slower recovery and lighter sleep, trace back to shifts inside your cells. NAD+, a molecule your cells rely on for energy and repair, is one example: studies of human tissue have found its levels tend to fall as we get older. Longevity care targets these shifts directly, guided by a licensed provider.
↳ Get started with NAD+Longevity care is a long game. Here is how a typical first year unfolds with Oak. Everyone responds differently, and your plan adapts with you.
Your provider reviews your assessment, your plan ships, and you settle into your routine. Some people notice early shifts in energy.
Your body begins responding. Check in with your care team, who can fine-tune your dose if needed.
Some people report steadier energy, deeper sleep or quicker recovery, depending on their plan. Your provider reviews your progress.
Consistency compounds. Your plan is refined around how you are responding and what you want next.
Ongoing care keeps your plan matched to your body as it changes, so the progress you make holds.
Timelines are illustrative. Individual results vary and are not guaranteed.
How the three options compare. Your provider confirms the right fit and dose for you.
Answer a few questions online, get reviewed by a licensed provider & receive discreet delivery if prescribed.
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Chronological age counts years. Biological age reflects how your cells and systems are actually aging, shaped by sleep, stress, activity and more. Longevity care focuses on the part you can influence.
↳ Start your free assessmentLongevity medicine focuses on healthspan, the years you live in good health. Rather than cosmetic anti-aging fixes, it looks at the biological processes behind aging, such as energy production, cellular repair and hormone signaling, and supports them before problems build up.
Lifespan is how long you live. Healthspan is how long you live in good health, free of the frailty and chronic conditions that limit daily life. The goal of longevity care is to extend both.
It depends on the change you want to feel first. NAD+ is often a starting point for energy and focus, Sermorelin for sleep and recovery, and Tesamorelin for body composition. Your provider reviews your health history and recommends where to begin.
Sometimes. Each option works on a different pathway, so some people layer treatments over time. Your provider decides whether combining is appropriate and sequences it safely rather than starting everything at once.
A licensed provider reviews your health history before prescribing anything. Compounded medications are not FDA approved and have not been reviewed by the FDA for safety or effectiveness. Possible side effects include injection-site reactions, flushing, headache and nausea, and your care team is available if you have questions.
NAD+ is $175 a month, regularly $199. Sermorelin and Tesamorelin pricing is shown after your free assessment. Every plan includes your provider review, ongoing messaging support and free discreet shipping. No insurance required.
The peer-reviewed work behind longevity medicine, summarized in plain language. Follow any link to read the original paper.
Maps the biological processes that drive aging, now expanded to twelve hallmarks, from energy metabolism to cellular cleanup.
Reviews how NAD+ supports energy production and cellular repair, and why levels tend to fall as we age.
Measured NAD+ in human tissue across age groups and found levels decline with age.
Discusses sermorelin as a way to prompt the body's own growth hormone release in adults, rather than replacing it directly.
Randomized trial in which tesamorelin reduced abdominal fat in adults living with HIV, the use it is FDA approved for.
Makes the case that targeting aging itself could delay many chronic diseases at once, the core idea behind geroscience.
You do not need to change everything. Answer a few questions online, and a licensed provider will recommend the longevity plan that fits your body, goals and life.
↳ Start my free assessment