Privacy
Short version: there is no account, no login, no newsletter, and no advertising network on this site. Nothing you type into a calculator ever leaves your browser.
The calculators
Every calculation on this site runs entirely in your browser. The dose you enter, the concentration on your vial, the price you were quoted — none of it is transmitted anywhere, stored anywhere, or visible to me. This is not a policy promise; it is how the pages are built. The site is a static export with no server to receive that data in the first place.
Visitor statistics
I use Vercel Web Analytics to count how many people visit and which pages they read. It is cookieless and does not build a profile of you or follow you to other websites. What it records is the page path, the referring site, and coarse technical details — country, device type, browser, operating system. It does not record your IP address as an identifier, and there is no way for me to look up an individual visitor.
I use it for one specific purpose: knowing which pages people actually read, and what proportion of readers go on to click an outbound link. Without a visitor count those numbers are unknowable, and I would rather measure the site than guess at it.
Affiliate links
Some outbound links are affiliate links, marked as paid placements and disclosed on the page where they appear. Clicking one takes you through a tracking redirect operated by the affiliate network I work with, which records that the click came from this site so any resulting commission is attributed correctly. That redirect and the destination company operate under their own privacy policies, not this one.
What matters practically: I am paid only if you go on to purchase something, never for the click itself. I do not receive your name, contact details, medical information, or anything else you provide to that company — only an aggregate count of clicks and conversions.
Server logs
The site is hosted on Vercel, which keeps standard request logs as part of operating any web server. I do not combine those with anything else and do not use them to identify individuals.
What this site does not do
- No advertising networks, retargeting pixels, or third-party ad trackers.
- No selling or sharing of visitor data. There is nothing to sell.
- No email list, and no contact form that stores what you write.
- No attempt to infer health conditions about individual visitors.
That last one deserves saying explicitly on a site about medication. Which page you read here could imply something private about you. I do not want that information, do not attempt to associate it with a person, and the analytics I use is not capable of doing so.
Contact
Questions about any of this, or a request relating to your data, go to [email protected]. If you would rather not be counted at all, any standard content blocker will stop the analytics script, and the site works exactly the same without it.
Last updated 7 August 2026. See also how this site is sourced and funded.