Graded, never guessed
Two scores per compound: effectiveness for its purpose, and safety. Cited, or it refuses.
Personal pharmacology lab
Research any supplement, peptide, or longevity compound, grade it on what works and what’s safe, and measure whether it’s actually working for you.
For biohacking, longevity, and serious stacks. Rigor, not hype.
Free to start

Your context
Two scores per compound: effectiveness for its purpose, and safety. Cited, or it refuses.
Encrypted. Member-owned. Export or delete anytime.
Classified user reports, literature, and a knowledge graph.
Platform
From the weekly bench to fully-cited dossiers, every feature turns scattered protocols and bloodwork into grounded, cohort-backed signal.
Why it’s different
The capabilities a serious stack demands, and who actually delivers them.
| Capability | General AI | Supplement DBs | Forums | Your clinician | SelfAssay |
|---|---|---|---|---|---|
| Grades effectiveness and safety, per compound | Partial | Partial | No | No | Yes |
| Real-world outcomes at scale, not just studies | No | No | Partial | Partial | Yes |
| Reasons over your specific stack | Partial | No | No | Partial | Yes |
| Flags interactions across your whole combination | Partial | Partial | No | Partial | Yes |
| Measures whether it's working for you (n-of-1) | No | No | No | Partial | Yes |
| Every claim cited, or it refuses when thin | No | Partial | No | Partial | Yes |
| Calibrated confidence, not false certainty | No | Partial | No | Yes | Yes |
| Private, member-owned data (export & delete) | No | No | No | Partial | Yes |
Each is good at what it’s for. SelfAssay is the only one built to reason over your whole stack with cited evidence, and refuse when it can’t.
Provenance you can see
Real-world reports, peer-reviewed literature and a curated knowledge graph, plus clinical trials, pharmacokinetics, adverse-event and FDA-label signals. Every answer is traceable to its source, with its method and sample size shown.
How we grade evidence
Grounding isn’t a tagline; it’s a method. Here’s the standard every answer is held to.
Every signal is cross-checked across classified real-world cohorts, peer-reviewed literature, and the curated knowledge graph; agreement and conflict are both surfaced.
Source, method and sample size shown inline. No naked assertions. If it’s stated, you can trace where it came from.
Strength of evidence is graded; weak signals are labelled weak. Precision is never overstated to sound more certain than the data allows.
When grounding fails, SelfAssay says so plainly, and names what evidence would change the answer. It never fills the gap with a guess.