Privacy Policy

Data Collection. Prof. Peptide does not collect personal information beyond what is voluntarily submitted (e.g., waitlist email). We do not use tracking pixels or sell data to third parties.

Analytics. We use Vercel Web Analytics to count page views and see which sites refer visitors to us. It uses no cookies; Vercel identifies visits with a temporary hash that is discarded after 24 hours and is not tied to an individual or IP address. It records the page visited, the referring site, general location, and device and browser type.

Cookies. We use minimal cookies required for site function. We do not use advertising cookies.

AI Chat Assistant. Questions you type into the chat assistant are logged so we can see which topics the site fails to answer and improve its coverage. We store the question, which pages were retrieved to answer it, timing and token counts, and a hashed form of your IP address — never the address itself. We do not store the assistant’s replies. These records are automatically deleted after 30 days. Your question is also sent to Anthropic’s API, which generates the answer, and is handled under their privacy policy. Please do not enter personal, identifying, or health information into the chat — it is a research tool, not a medical or account service.

PRTCL app. The PRTCL app stores your protocols, dose log, measurements and reconstitution history on your device. There is no account. If you enable Apple Health sync, the app reads weight, body fat percentage, lean body mass, BMI, waist circumference and height from Apple Health, and writes back the weight, body fat and waist measurements you log; both are governed by Apple’s privacy controls. Dose reminders are scheduled locally on your device. The AI research assistant is the one exception: the conversation you type is sent through profpeptide.com to Anthropic’s API, which generates the reply, and is handled under Anthropic’s privacy policy. profpeptide.com does not store the conversation or the reply; it uses your IP address only to limit how often the assistant can be called, and doesn’t write it to a log or database. Nothing else from the app is sent. Please do not enter personal, identifying or health information into the assistant.

Third Parties. We use Vercel for hosting, which may log standard server request data (IP address, user agent) per their own privacy policy, and for anonymous, aggregate site analytics.

Contact. Questions about privacy can be directed through the site contact page.

Last updated: October 10, 2026