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Resources

Guides & vetted references.

A working library — the pages we send friends when they ask a question. Educational only; not medical advice.

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In-depth guides

  • 01

    How to access GLP-1 safely

    A walkthrough of legitimate pathways — insurance, cash-pay branded, and compounded — with the trade-offs of each.

  • 02

    Testing your peptides for quality

    How third-party mass spectrometry works, what a COA should include, and reputable independent labs.

  • 03

    The GLP-1 safety profile (research summary)

    A plain-language digest of the STEP, SURPASS, and post-marketing surveillance data.

  • 04

    Athletic peptide protocols

    Common protocols reported in the literature for BPC-157, TB-500, and growth hormone secretagogues, with WADA context.

  • 05

    NAD+ supplementation guide

    Precursors, IV vs. oral, dosing in trials, and what endpoints have actually been measured.

  • 06

    Reading a peptide study

    A checklist for evaluating sample size, blinding, endpoints, and industry funding.

Vetted providers

Providers we've reviewed for licensing, sourcing transparency, and published testing. Some links are affiliate links — if you use one, Peptide Base Lab earns a commission at no extra cost to you. We only list providers we would use ourselves, and inclusion is never paid for.

  • Licensed telehealth GLP-1 programs

    Prescription

    Physician-supervised semaglutide and tirzepatide programs with pharmacy dispensing.

    Why we list it: State-licensed prescribers, FDA-approved product where available, and clear pricing.

  • 503A / 503B compounding pharmacies

    Compounded

    Compounded GLP-1 sourcing when a branded product is unavailable or unaffordable.

    Why we list it: Registered with the FDA, publishes potency and sterility testing per batch.

  • Independent analytical labs

    Testing

    Third-party HPLC and mass spectrometry testing for research compounds.

    Why we list it: Accredited methods and a full COA rather than a summary certificate.

  • Research peptide suppliers

    Research use

    Suppliers that publish per-lot HPLC and mass spec data for research material.

    Why we list it: Lot-matched COAs, and our own samples matched their stated purity.

External references

Primary sources we use, cite, and recommend. We don't earn from any of these links.