It’s now $1/day to take control of your health. 

With 160+ lab tests per year, Function membership already gives you a powerful way to understand your body, track changes over time, and stay ahead of your health. 

Now, we’re making this level of proactive care even more accessible. 

Membership is $365/year (down from $499) so you can access the information you need to take control of your health for $1/day. 

Whether you’re joining Function for the first time, renewing your membership, or gifting to someone you love, it’s $365 across the board.

Plus, membership now includes beta access to Private AI Chat and Protocols—designed to help you dig deeper into your results, identify what matters, and make meaningful progress. 

Private AI Chat (beta) 

Get instant answers, grounded in your health

When you have a question about your health or lab results, you shouldn’t have to sort through generic online information.

Private AI Chat gives you clear, personalized explanations in seconds, using your lab results, health history, and data from connected health devices as context. 

Built with top clinicians and medical research, it helps you better understand your body and where to focus next. Try asking questions like “What does my high ApoB mean?” or “Where should I focus first?” 

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Protocols (beta) 

Turn your lab results into action

Each new set of lab results offers valuable information about your lab results. Protocols help you act on it. 

Protocols are personalized, evidence-based plans for nutrition, fitness, supplements, sleep, and stress management—created with the context of your health data and goals. 

Every plan adapts to your habits and health as they evolve. Make meaningful, measurable progress over time. 

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Built to evolve with you 

Health isn’t static. Your approach shouldn’t be, either. 

Function takes every lab result, daily action, and detail you share into account, so you’ll get more relevant insights and precise recommendations over time. 

Take control of your health 

Join Function - Become a member today for $365/year. 

Gift Function  - Help someone you love take control of their health for $365/year. 

Explore what’s new - Log into your account to access Private AI Chat and Protocols.