Build a regimen you can defend.
Supplements, unapproved compounds, fasting, training, sleep — the things that shape how you age are the ones nobody will advise you on. Get evidence graded guidance for your goals, cross checked against your medicines and conditions, with every flag naming the source behind it.
It all runs in your browser: no account, no server, nothing sent anywhere. Log your biomarkers as you go, and you can see which changes actually moved your numbers rather than trusting how you felt that week.
Your goals
See evidence based suggestionsWhat you take
About you
11 of our 33 guidance rules read something about you. Answer what you like — it stays on this device and is never sent to us.
Skip this and you still get every finding that needs nothing personal.
Your biology at birth drives dosing and lab ranges. Separate from gender identity.
Alcohol and tobacco
What we found
Now find out whether it works for you
Evidence tells you what happened to people in a study. It cannot tell you what happens to you. Log the numbers you already have — sleep, resting heart rate, blood pressure, bloodwork — against the regimen above, and watch what actually moves. Your regimen comes with you; it all stays on this device.
Start tracking this regimenInformational only. Not medical advice. Interactions shown are documented in published literature. Your individual risk depends on dose, timing and physiology. Always confirm with your clinician. We check supplements against each other and against medicines. We do not check medicines against each other — that is your prescriber's job, and a clear result here says nothing about it.
Where the evidence for benefit is thin, the harm can still be real.
For a great many supplements the benefit is small, uncertain, or has never been measured properly — and we say so, on the page, with the grade of the evidence beside it. The risks are a different matter. An interaction with a medicine you already take, a documented liver signal, a bleeding risk before surgery: those are recorded, they depend on who you are, and they work directly against the healthspan you are trying to buy. So the harm layer is not a footnote here. It runs over everything you enter, every time.
Every substance against your medicines and against each other — not one pair at a time, and not only the supplement you happened to search for.
11 of our 33 guidance rules read something about you — alcohol, allergies, kidney disease, liver disease, pregnancy and breastfeeding, tobacco, your age. Answer none of it and you still get everything that needs nothing personal.
382 documents from 126 publishers stand behind 75 substance relationships. Relationships asserted without a document: 0.
From "what should I take?" to "is this working?"
The knowledge base
In depth guides on the supplements that matter for longevity. Every claim cited. Updated when the evidence changes.
Hype vs. evidence
The peptides and "biohacks" filling your feed, weighed against the actual clinical record. No dunking. Just what the evidence shows, and what it doesn't.
The "Wolverine peptide." Animal data only, sold as a research chemical, and prohibited in sport by WADA.
Growth hormone secretagogues linked to acromegaly and insulin resistance. Serious risks, thin evidence.
Compounded semaglutide from unregulated sources. Purity and dose can't be confirmed. Real drug, real risk.
An unapproved route. Oral NR / NMN have better characterised safety, if you want to raise NAD+ at all.
See what actually moves your numbers.
Log the metrics you already track: resting HR, sleep, blood pressure, body fat, bloodwork. Watch them against the changes in your regimen. Structured entry, so trends are real.
Your biology is your business.
On device storage, optional encrypted backup, zero tracking. We will never sell or share your health data. And however we make money, we'll tell you exactly how.