The records are free.
Watching them is the paid part.
A free account opens the whole directory, every vendor price, and every evidence profile. Pro is the Living Protocol: your compounds registered once as a Stack File, put under Standing Watch, every change delivered as a translated Change Brief, with a Prescriber Sheet to take to your doctor when something moves. Your first Drift Report lands in about ninety seconds: every documented change since you started, dated and linked.
| Included | Viewer | Free account | Pro |
|---|---|---|---|
| Journal and guides | All | All | All |
| Peptide evidence profiles | Preview | All | All |
| Vendor directory | First 8 | All 350 | All 350 |
| Vendor prices | First 3 per compound | All | All |
| Price history and change | — | All | All |
| Price alerts by email | — | — | Included |
| New certificate alerts | — | — | Included |
| Safety reports | — | — | Included |
| Research assistant | — | — | Included |
$75 per year
Save $12.36 compared with twelve monthly payments.
Everything on the free account stays free. Pro adds the things that watch the records for you.
Cancel any time from your account; access continues to the end of the period you have paid for. Payment is handled by Stripe — card details never reach Senzu.
What Pro is not. Senzu does not certify vendors, endorse products, or give medical advice, and paying changes none of that. Pro watches published records and tells you when they move; every figure it sends carries the date it was observed.