What does the peptide quiz do?

The quiz asks 3 short questions about your research goal, priority (evidence, safety, efficacy, or cost), and preferred dosing cadence. It then computes a match score for every peptide in our catalogue — weighted by human-trial evidence, safety profile, and protocol compatibility. No prescription, no diagnosis.

How is the match score computed?

Every peptide in the catalogue carries structured metadata (indication, evidence tier 1–10, safety profile, half-life, standard dosing). Your answers are compared against that metadata — 65% weight on goal fit, 25% on priority, 10% on dosing rhythm. The score is a catalogue ordering, not a medical verdict.

Which peptides are included in the quiz?

Our research catalogue currently covers 12 peptides across six categories: Recovery (BPC-157, TB-500, TB-500/BPC-157 Blend), Skin & Collagen (GHK-Cu, Glow Stack, Melanotan II), Growth Hormone (HGH fragment 176-191, Tesamorelin), Weight Management (Retatrutide, Tirzepatide), and Cognition (Selank, Semax). All are sold as research reference materials only.

Are the recommendations medical advice?

No. The recommendations help you orient your research and compare products. They do not replace medical advice, diagnosis, or prescription. Always verify the fit for your research protocol and the regulations in your jurisdiction.

Do I have to leave an email address?

No. The quiz runs without registration. Your answers are stored locally in the browser so you can return later. Optionally you can export your shortlist as PDF or share it via link — both without an account.

What sets BergdorfBio apart?

Every batch is tested by HPLC to ≥99% purity. The Certificate of Analysis (CoA) is on file per batch and retrievable by batch number. All products are lyophilised for maximum stability and are sold exclusively as research reference materials.

Peptide guide

3 questions. Your matching peptide.

We match your goals live against our research catalogue. No signup, no spam, ~45 seconds.

1Goal
2Priority
3Rhythm

Open the peptide catalogue

Question 1 of 3

What is your primary goal?

No email required

Research use onlyHPLC purity ≥99%CoA per batch

Transparency

How matching works

No black-box algorithm. Three steps, fully traceable.

Capture goals

3 structured questions about your main goal, priority, and dosing rhythm. No health data, no diagnosis.

Goal · Priority · Rhythm

Match the catalogue

Answers are matched against 12 peptides. Every peptide carries an evidence score, research maturity, and structured metadata.

12 peptides · 4 priority dimensions

Show the match score

You get a shortlist with a score per peptide. Ordering, rationale, and alternatives are visible. Answers stay editable.

Top match · 2 alternatives · stack option

Background

Why use a peptide quiz?

The research-peptide market is messy. Different mechanisms, evidence tiers, and dosing schedules make comparison hard. The quiz structures the choice.

Structured entry vs. catalogue scrolling. Anyone comparing research peptides for the first time faces a flat list of 12 products that differ wildly in mechanism and research maturity. BPC-157 and Retatrutide sit side-by-side even though they address completely different research questions. The quiz clarifies — in three steps — which category is even relevant.

Priority over product love. Many comparison pages sort by popularity or price. What matters more is what you prioritise — established human evidence, a conservative safety profile, maximum efficacy even at newer data tiers, or friendly budgets. That priority carries 25% weight in the score.

Rhythm compatibility. A weekly peptide (e.g. Tirzepatide) does not fit a protocol that needs daily data points. Conversely, daily BPC-157 is too high-touch for some designs. That is why dosing frequency is the third quiz question.

Alternatives and stacks are visible. Instead of a single "winner", we show the top 3 and offer a synergy stack on demand — such as BPC-157 + TB-500 for regeneration research. The choice stays traceable and comparable, even when you edit answers later.

Quality standard

Every batch documented. Every batch ID traceable.

≥99%

HPLC purity

Per-batch tested and documented

CoA

per batch

Certificate of Analysis available

Peptides in catalogue

Recovery, Skin, GH, Weight, Cognition

14 d

Purity guarantee

Money back on deviation

Category overview

Which peptides exist for which goal?

Six research categories in the catalogue. Click a tile to jump straight to the matching peptides — no quiz needed.

Recovery & healing

3 peptides

Tissue repair, tendon/joint regeneration, GI healing. Focused on eNOS/VEGF pathways and actin polymerisation.

BPC-157 · TB-500 · TB-500 + BPC-157 Blend

Open catalogue →

Anti-aging & skin

3 peptides

Collagen synthesis, skin rejuvenation, tanning research. Copper tripeptides and α-MSH analogues.

GHK-Cu · Glow Stack · Melanotan II

Open catalogue →

Growth hormone

2 peptides

GHRH analogues and GH fragments. Metabolic research, IGF-1 axis.

HGH fragment 176-191 · Tesamorelin

Open catalogue →

Weight management

2 peptides

GLP-1/GIP/glucagon agonists. Triple and dual mechanisms for glucose and weight research.

Retatrutide · Tirzepatide

Open catalogue →

Cognition & neuroprotection

2 peptides

Nootropics, BDNF induction, anxiolytic research. Heptapeptide and melanocortin analogues.

Selank · Semax

Open catalogue →

Compare all peptides

12 peptides

Direct catalogue access with every filter — category, price, research maturity, availability.

All categories · filter by price/evidence

Open catalogue →

Glossary

Terms used in the quiz

Short definitions of the key technical terms. Full explanations live in the Research Guides. Research Guides.

HPLC purity

High-performance liquid chromatography — the standard method to quantify target-peptide content vs. impurities. We publish the HPLC value per batch.

CoA (Certificate of Analysis)

Document stating the measured quality parameters (purity, peptide content, endotoxins) for every batch. Publicly retrievable by batch number with us.

Lyophilised

Freeze-dried powder. Removes water from the dissolved peptide and maximises shelf stability. Standard for research peptides.

Stack

Combination of two or more peptides with complementary mechanisms — e.g. BPC-157 + TB-500 for regeneration. Available as blend or separate vials.

Half-life

Time until half the dosed substance is cleared. Shapes dosing-frequency design in research protocols.

Reconstitution

Dissolving the lyophilised powder in bacteriostatic water. For concentration and volume maths, use our peptide calculator.

FAQ

Frequently asked questions

Still unanswered? Our support team typically replies within 4 hours.

Contact support →

What does the peptide quiz do?: The quiz asks 3 short questions about your research goal, priority (evidence, safety, efficacy, or cost), and preferred dosing cadence. It then computes a match score for every peptide in our catalogue — weighted by human-trial evidence, safety profile, and protocol compatibility. No prescription, no diagnosis.
How is the match score computed?: Every peptide in the catalogue carries structured metadata (indication, evidence tier 1–10, safety profile, half-life, standard dosing). Your answers are compared against that metadata — 65% weight on goal fit, 25% on priority, 10% on dosing rhythm. The score is a catalogue ordering, not a medical verdict.
Which peptides are included in the quiz?: Our research catalogue currently covers 12 peptides across six categories: Recovery (BPC-157, TB-500, TB-500/BPC-157 Blend), Skin & Collagen (GHK-Cu, Glow Stack, Melanotan II), Growth Hormone (HGH fragment 176-191, Tesamorelin), Weight Management (Retatrutide, Tirzepatide), and Cognition (Selank, Semax). All are sold as research reference materials only.
Are the recommendations medical advice?: No. The recommendations help you orient your research and compare products. They do not replace medical advice, diagnosis, or prescription. Always verify the fit for your research protocol and the regulations in your jurisdiction.
Do I have to leave an email address?: No. The quiz runs without registration. Your answers are stored locally in the browser so you can return later. Optionally you can export your shortlist as PDF or share it via link — both without an account.
What sets BergdorfBio apart?: Every batch is tested by HPLC to ≥99% purity. The Certificate of Analysis (CoA) is on file per batch and retrievable by batch number. All products are lyophilised for maximum stability and are sold exclusively as research reference materials.

Research reference material. All products are sold for laboratory research only. Match scores are catalogue ordering, not a medical verdict. Not for human use. Check your local regulations.