Quiz with Peptarch
Understand every answer.
Choose a five-question round on peptide basics or reading research. Explore sourced explanations, earn stars, and practise the questions you missed.
3 rounds · 15 questions · at your own pace
The peptide encyclopedia
Peptides,in perspective.
An independent peptide encyclopedia. Explore the evidence, its limits, and the original research.
IndependentSource-cited80 review-dated profiles
Scan to get Peptidia on your iPhone
Information only · 18+
From structure to understanding
Every connection,a clearer picture.
Follow the evidence from a peptide’s mechanism to the studies behind it. All in one carefully cited reference.
Discover PeptidiaNew in Peptidia 1.4
Learn with the Peptarch. Make time to reflect.
Meet your guide in three beginner quizzes, and explore a Journal redesigned for your daily check-in.
The refreshed Journal
Check in with your day.
Record your mood, energy, sleep, or a thought to return to. The weekly view shows the days you recorded. Every field is optional.
Weekly view · private daily check-ins
Actual screens from version 1.4. The app and quizzes are available in English and French.
Start with a preview of the app. Your research interests then shape how you discover the library.
Signal, separated
The internet gives you claims.Peptidia gives you context.
Peptide profile · Recovery
citedBPC-157
A plain-language profile of proposed tissue-repair pathways, evidence limitations, and safety context.
Evidence
Preclinical
Risk context
Clearly labeled
Source trail
PubMed + DOI
Commercial bias
None
Claims → context → sources
noisesignal
Inside Peptidia
Research that reads like a reference, not a feed.
Four deliberate moves take you from a name to the source trail behind it. The interface stays quiet so the evidence can do the talking.
01Discover
Find a compound. See the evidence posture first.
Search by name or research interest, then scan evidence and risk labels before opening a profile.
✓80 review-dated, source-cited peptide profiles
02Understand
Open the Evidence Passport before the claims.
See research maturity, source strength, linked-source coverage, latest source year, and the last editorial-review date before reading mechanism or goal relevance.
✓A source score describes evidence strength—not efficacy
03Compare
Put the research context side by side.
Compare class, evidence, safety context, and citations without turning the information into a recommendation.
✓Designed for understanding, never prescribing
04Ask
Ask the Peptarch. Get a grounded answer.
The AI guide answers from the curated library and separates library entries from the specific study records supplied to each answer.
✓Inspectable answer-level study cards
Inside Peptidia
Research that reads like a reference, not a feed.
Four deliberate moves take you from a name to the source trail behind it. The interface stays quiet so the evidence can do the talking.
- 01
- 02
- 03
- 04
01Discover
Find a compound. See the evidence posture first.
Search by name or research interest, then scan evidence and risk labels before opening a profile.
✓80 review-dated, source-cited peptide profiles
Learn and follow the research
Explore the concepts behind the research.
Build on the Peptarch quizzes with visual guides to anatomy and measurements. Research Watch follows new publications every week.
Research Watch
The library watches the literature every week.
Every published entry is scanned across PubMed and ClinicalTrials.gov. New source records are indexed separately from editorial conclusions, and subscribers can opt in to an alert only when something genuinely changes.
Weekly scanChange-triggered alerts
Interactive anatomy
Injection sites, explained.
Explore common subcutaneous regions, rotation principles, hygiene, and safety context on a source-cited body map. This reference does not provide a self-injection walkthrough.
6 sources · education only
Visible dimensional analysis
Reconstitution math, made legible.
Learn how units, volume, concentration, and syringe scales relate through step-by-step formulas using your own values only.
Conversions · concentration · your numbers
The research standard
Credibility is not a badge.It is the interface.
Every Evidence Passport shows research maturity, source and link coverage, strongest source tier, latest source year, uncertainty, and the date an editor last reviewed the record.
Peptide profiles now listed in the Peptidia app—each editorially reviewed
Explained source-strength tiers—not an unexplained score
Visible editorial-review date on every published profile
0 doses0 protocols0 vendor links0 miracle claims
Meet your guide
Meet the Peptarch behind the answers.
The app’s Peptarch introduces your library, hosts the beginner quizzes, and helps you explore the research. In Coach, his answers draw on the curated library and supplied studies, with sources and evidence limitations you can inspect.
9:41•••
The PeptarchGrounded in the library · cites sourcesAsk the Peptarch…↑
LibraryLearnCoachJournalSettings
Full access
The entire reference.Two ways to access it.
Peptidia is intentionally a paid, independent reference. No ads, no vendor commissions, and no content shaped around a checkout cart.
01
Evidence Passports
Review dates, evidence maturity, source strength, limitations, safety context, and direct source links on every full profile.
02
Research Watch
Weekly source scans across every published entry, with optional alerts only when the evidence index changes.
03
Quizzes + visual guides
Three beginner quiz rounds with sourced answers, plus the anatomy and measurement guides.
04
Guide + journal
Answers with inspectable studies, plus a private journal with a weekly view and optional daily check-ins.
What access includes
Serious research context, kept beautifully simple.
- ✓The complete review-dated reference
- ✓Weekly Research Watch source scans
- ✓Peptarch quizzes and visual guides
- ✓Study-grounded AI answers
- ✓Private wellness journal
Monthly
$9.99/ month
Complete access, billed by Apple. Cancel anytime from your App Store subscriptions.
No free trial. Your first charge is immediate. Prices shown in USD; Apple confirms your local price before purchase.
Founding lifetime
Launch only$59.99once
The same complete access with a single payment. Limited to one hundred launch places, while available.
Clear by design
Good questions deserve direct answers.
Peptidia is precise about what it is, what it costs, and where its responsibility ends.
No. Peptidia is an educational reference. It does not diagnose or treat any condition, generate protocols, or recommend that anyone take a compound. It is not a substitute for a licensed healthcare provider.
The Peptidia dispatch
A better signal, occasionally.
A concise newsletter for meaningful evidence additions, new learning tools, and product updates. No weekly quota and no inbox theatre.
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Unsubscribe at any time by replying ‘unsubscribe’ to a Peptidia email.