The Peptide Research Database

56 compounds. Evidence-graded. Every claim traced to its source — from peer-reviewed studies and clinical trials to FDA filings and expert analysis.

Compound Database

Every compound graded on evidence quality — from FDA-approved therapeutics to early-stage research

Stack Finder

Select your research interests and see which compounds the literature supports

Head-to-Head Compare

Place any two compounds side by side — evidence grade, regulatory status, study count

Interaction Checker

Review published interaction data before combining compounds

Verified Sources

Third-party tested vendors with published certificates of analysis for research compounds

pepmaxxing.xyz is a research aggregation tool — not a medical resource. Nothing on this site constitutes medical advice, diagnosis, or treatment recommendations. Regulatory status varies by jurisdiction. Not intended for pregnant or nursing women, individuals under 18, or those with pre-existing medical conditions without physician guidance. Always consult a licensed healthcare provider before making any decisions about compounds discussed here. Content is sourced from PubMed, ClinicalTrials.gov, FDA databases, and published expert commentary.
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Compound Database

All
FDA Approved
Approved (Non-US)
Phase 2-3 Trials
Established Research
Emerging Research
Peptide-Adjacent
Experimental/Limited
pepmaxxing.xyz is a research aggregation tool — not a medical resource. Nothing on this site constitutes medical advice, diagnosis, or treatment recommendations. Regulatory status varies by jurisdiction. Not intended for pregnant or nursing women, individuals under 18, or those with pre-existing medical conditions without physician guidance. Always consult a licensed healthcare provider before making any decisions about compounds discussed here. Content is sourced from PubMed, ClinicalTrials.gov, FDA databases, and published expert commentary.
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Head-to-Head Comparison

Select two compounds above to compare their evidence profiles

pepmaxxing.xyz is a research aggregation tool — not a medical resource. Nothing on this site constitutes medical advice, diagnosis, or treatment recommendations. Regulatory status varies by jurisdiction. Not intended for pregnant or nursing women, individuals under 18, or those with pre-existing medical conditions without physician guidance. Always consult a licensed healthcare provider before making any decisions about compounds discussed here. Content is sourced from PubMed, ClinicalTrials.gov, FDA databases, and published expert commentary.
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Interaction Checker

Review published interaction data between compounds. Select a pair to see what the research literature reports about their combination.

Frequently checked pairs:

Choose two compounds above to view interaction data

Multi-Compound Review

Researching a combination? Select multiple compounds to review all known interactions at once.

pepmaxxing.xyz is a research aggregation tool — not a medical resource. Nothing on this site constitutes medical advice, diagnosis, or treatment recommendations. Regulatory status varies by jurisdiction. Not intended for pregnant or nursing women, individuals under 18, or those with pre-existing medical conditions without physician guidance. Always consult a licensed healthcare provider before making any decisions about compounds discussed here. Content is sourced from PubMed, ClinicalTrials.gov, FDA databases, and published expert commentary.
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Stack Finder

Explore which compound combinations are supported by published research for specific areas of interest

Select Research Areas

Popular Stacks

Clear All

Select one or more research areas above to see matching compounds

pepmaxxing.xyz is a research aggregation tool — not a medical resource. Nothing on this site constitutes medical advice, diagnosis, or treatment recommendations. Regulatory status varies by jurisdiction. Not intended for pregnant or nursing women, individuals under 18, or those with pre-existing medical conditions without physician guidance. Always consult a licensed healthcare provider before making any decisions about compounds discussed here. Content is sourced from PubMed, ClinicalTrials.gov, FDA databases, and published expert commentary.
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Verified Peptide Sources

Third-party tested vendors with published certificates of analysis. Every source listed here ships research-grade compounds.

All Vendors
Peptides
SARMs & Research
Nootropics
Supplements

Why These Vendors?

We only list sources that publish third-party Certificates of Analysis (COA), offer transparent pricing, and have consistent track records in the research community. We regularly review and update this list.

COA Published
Third-Party Tested
Community Vetted
pepmaxxing.xyz is a research aggregation tool — not a medical resource. Products listed here are sold for research purposes only. Nothing on this site constitutes medical advice or treatment recommendations. Regulatory status varies by jurisdiction. Not intended for pregnant or nursing women, individuals under 18, or those with pre-existing medical conditions without physician guidance. Always consult a licensed healthcare provider before making any decisions about compounds discussed here. Content is sourced from PubMed, ClinicalTrials.gov, FDA databases, and published expert commentary.

Affiliate Disclosure: pepmaxxing.xyz may earn a commission from purchases made through links on this page. This does not affect our research ratings, evidence grades, or compound reviews. All vendors are independently evaluated.
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Privacy Policy

What Data We Collect

We collect minimal data to operate pepmaxxing.xyz:

  • Email addresses when you sign up for our newsletter
  • Vercel Analytics cookies that track page views and basic user interactions

How We Use Your Data

  • Email addresses are used exclusively for newsletter delivery
  • Analytics cookies help us understand how users interact with the site to improve the experience

Third-Party Services

We use the following third-party services:

  • Vercel Analytics: Tracks page views and user behavior for site optimization
  • Affiliate Partners (e.g., Ascension Peptides): We earn commissions on purchases made through affiliate links. See our affiliate disclosure on the Shop page.

Cookie Policy

Vercel Analytics sets cookies for the following purposes:

  • Tracking page views and session duration
  • Identifying unique visitors (anonymized)
  • Understanding user journey through the site

Your Rights (GDPR & CCPA)

You have the following rights regarding your data:

  • Right to Access: Request a copy of personal data we hold about you
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Data Retention

We retain your email address only while you remain subscribed to our newsletter. You may unsubscribe at any time, and your email will be deleted within 30 days. Analytics data is retained for 12 months.

Newsletter & Communications

We will never sell your email address to third parties. You have the absolute right to unsubscribe from our newsletter at any time. Unsubscribe links are included in every newsletter email.

Data Security

We do not transmit or store sensitive personal information. Email addresses are stored with industry-standard encryption. We do not sell, rent, or lease your data to any third party.

Contact Us

For privacy inquiries, data requests, or to exercise your rights, contact us at: contact@pepmaxxing.xyz

Last updated: March 2026

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Terms of Service

Nature of This Site

pepmaxxing.xyz is a research aggregation tool, not medical advice. This site compiles evidence from peer-reviewed studies, clinical trials, FDA databases, and expert analysis. Nothing on this site constitutes medical advice, diagnosis, or treatment recommendations.

No Liability for Site Content

You use this site entirely at your own risk. We assume no liability for any decisions you make based on information provided here. Always consult a licensed healthcare provider before making any decisions about your health or the compounds discussed on this site.

Affiliate Link Disclosure

pepmaxx may earn commission from purchases made through affiliate links on this site. Our research ratings, evidence grades, and compound reviews are independent and not influenced by affiliate relationships. All vendors linked on the Shop page are independently evaluated for quality and safety standards.

Research Use Only

Products linked on this site are described as research compounds and are not intended for human consumption. Many compounds discussed here are experimental and carry significant health risks. Some have not completed human clinical trials. You are solely responsible for understanding the legal and health status of any compound in your jurisdiction.

User Assumes All Risk

By using this site, you acknowledge and accept all risks associated with research compounds, including but not limited to health risks, legal consequences, and financial loss. pepmaxx cannot be held responsible for any adverse outcomes resulting from your use of any compound discussed here.

Content Sources

Our content is sourced from:

  • PubMed (peer-reviewed medical literature)
  • ClinicalTrials.gov (registered clinical trial data)
  • FDA databases and regulatory filings
  • Published expert commentary and reviews

Content Accuracy & Completeness

While we strive for accuracy, content may contain errors, be outdated, or incomplete. Research evolves continuously, and regulatory statuses change. We provide no warranty of accuracy, completeness, or fitness for any particular purpose. Information should be verified independently and discussed with a healthcare provider.

Restrictions on Use

This site is for informational purposes only. You may not:

  • Use information from this site to diagnose, treat, cure, or prevent disease
  • Reproduce or redistribute content without permission
  • Use this site in violation of any applicable laws

Governing Law & Jurisdiction

These terms are provided for informational purposes. Users are responsible for understanding and complying with all applicable laws in their jurisdiction regarding the compounds discussed on this site. pepmaxx makes no representations about the legal status of any compound in any jurisdiction.

Contact

For questions about these terms, contact us at: contact@pepmaxxing.xyz

Last updated: March 2026

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