Methodology and data integrity
Every number on PepTalk is self-reported by pseudonymous users, unverified, and shown only once a cohort is large enough that no individual can be identified. This page explains exactly how that aggregation works and where its limits are.
Pseudonymous contributions
PepTalk accounts carry no email and no real name, just a handle and a password. Personal logs are encrypted on the device, so PepTalk servers store ciphertext they cannot read. Aggregate stats are built only from the structured fields a user explicitly contributes, never from anything that identifies them.
Cohort suppression (k-anonymity, n at least 25)
No cohort statistic is published until at least 25 contributors have reported it. Cohorts under that threshold are suppressed and shown as "not enough reports yet". This k-anonymity floor applies to every public dose figure, side-effect frequency, and comparison, so a stat can never be traced back to one person.
Dedup by contributor
Cohort figures are computed per contributor, not per log. A user who logs many doses counts once toward contributor-level cohort numbers. The sample size (n) shown next to every statistic is a count of distinct contributors, not of raw entries.
Structured inputs only, no free text
Doses, routes, side effects, and outcomes are captured through a fixed, operator-curated vocabulary and numeric inputs, never free text. This keeps side-effect frequencies comparable across users and removes a re-identification vector. It also means our side-effect lists are bounded by that vocabulary, not exhaustive.
Limitations of self-reported data
These figures describe what users say, not clinical fact. They are unverified and may be inaccurate, subject to selection bias (the kind of person who logs peptide use), recall bias, and small-sample noise in newer cohorts. We surface the sample size on every statistic so you can weigh it yourself. PepTalk reports what people report. It does not claim any substance is safe or effective.
Frequently asked
- Where does PepTalk's data come from?
- Every figure is self-reported by pseudonymous PepTalk users logging their own doses, routes, side effects, and outcomes. There is no clinical trial behind it. It is real-world, self-reported, and unverified.
- How does PepTalk protect individual privacy in its stats?
- We never display a cohort statistic until at least 25 contributors have reported it (a k-anonymity threshold). Cohorts below that size are suppressed entirely, so no single person can be identified from an aggregate.
- Is PepTalk medical advice?
- No. PepTalk is an information and self-tracking tool, not medical advice and not an endorsement of any substance. Talk to a qualified clinician before making any health decision.
- Can the same person inflate the numbers?
- Aggregates are computed per contributor, not per log, so one person's repeated entries count once toward contributor-level cohort figures. This dedup is what the visible contributor count (n) reflects.
Self-reported by users, unverified. Not medical advice and not an endorsement of any substance. 18+ only.