Contact

One address, read by one person: iamkashifcs@gmail.com.

There is no contact form. The site is static and has no server to receive one — which is the same reason nothing you type into a calculator ever leaves your browser.

Corrections come first

Every figure on this site is meant to trace to an FDA label or a named study. If one does not, or if a source has moved on and a page has not, that is a defect and it gets fixed before anything else. The most useful message you can send names the page, the figure, and the document that contradicts it. A link to the label section or the paper is enough.

Everything currently cited is listed on Sources, so you can see what a page was built from before writing.

What cannot be answered

• Anything about your own dose. No clinician reviews this site and none answers this address. A question about what to take, whether to change a dose, or whether a symptom matters has to go to someone licensed who knows your history. See the medical disclaimer.
• Where to buy anything. The site sells nothing, recommends no vendor, and takes no commission from one.
• Link placement. Paid links, guest posts and “we noticed a broken link on your page” pitches are deleted unread.

Also welcome

• A compound or conversion the site should cover, and what you were trying to work out.
• A calculator that gave a result you could not reproduce by hand — include your inputs.
• Anything broken: a page that will not load, a chart that will not print, a control that does not work with a keyboard or a screen reader.
• Press, or a licensed clinician willing to review the dosing pages under their own name. That is the one thing this site is missing and cannot manufacture.

Privacy of what you send

Mail sent to this address sits in an ordinary inbox and is read by Kashif Khan. It is kept while it is useful and deleted afterwards. Please do not send personal health information — it is not needed to fix a page, and this is not a channel set up to protect it. See the privacy policy.

Who operates this site

FreePeptideCalc is run by Kashif Khan, an individual in Pakistan. There is no company behind it and no staff — which is stated plainly here and on About rather than implied otherwise by a plural pronoun.