# Peptide Price Lab > Peptide Price Lab is a free browser-based research tool and content site for comparing research peptide prices per milligram across vendors. The main website is https://peptidepricelab.com/ and the calculator app is https://app.peptidepricelab.com/. Peptide Price Lab helps researchers compare peptide costs on an apples-to-apples basis by converting vendor product prices, vial sizes, and quantities into cost-per-milligram comparisons. The site also includes peptide research notes, plain-language explainers, beginner guides, news coverage, a vendor reference directory, and a weekly newsletter (the Dispatch). All Peptide Price Lab content is for informational and research purposes only. It is not medical advice, does not recommend human use of research peptides, and does not replace consultation with a licensed healthcare provider. Vendor information, prices, product availability, purity claims, shipping policies, and promo codes can change frequently and should be verified directly with each vendor. ## Primary Links - [Home](https://peptidepricelab.com/): Overview of Peptide Price Lab and the free per-mg peptide price comparison tool. - [App / Calculator](https://app.peptidepricelab.com/): Browser-based calculator for comparing peptide cost per mg and planning vendor bundles. - [Research Notes (The Index)](https://peptidepricelab.com/peptides/): Index of research notes on commonly tracked peptides. - [Start Here](https://peptidepricelab.com/start-here/): Plain-language beginner guides to research peptides. - [Plain Language](https://peptidepricelab.com/plain-language/): Accessible explainers of individual compounds and topics. - [Editor's Notes](https://peptidepricelab.com/notes/): Longer-form editorial analysis pieces. - [News](https://peptidepricelab.com/news/): Coverage of regulatory and market developments affecting research peptides. - [The Dispatch](https://peptidepricelab.com/dispatch/): Free weekly email newsletter and its public archive. - [Sources Directory](https://peptidepricelab.com/sources/): Informational directory of research peptide vendors, shipping notes, COA notes, and vendor reference links. - [Sitemap](https://peptidepricelab.com/sitemap.xml): Complete machine-readable list of public site URLs. ## Research Notes - [5-Amino-1MQ](https://peptidepricelab.com/peptides/5-amino-1mq/) - [AOD-9604](https://peptidepricelab.com/peptides/aod-9604/) - [Anti-Aging Stack](https://peptidepricelab.com/peptides/anti-aging-stack/) - [BPC-157](https://peptidepricelab.com/peptides/bpc-157/) - [Cagrilintide](https://peptidepricelab.com/peptides/cagrilintide/) - [CJC-1295](https://peptidepricelab.com/peptides/cjc-1295/) - [Epithalon](https://peptidepricelab.com/peptides/epithalon/) - [GHK-Cu](https://peptidepricelab.com/peptides/ghk-cu/) - [GHRP-2](https://peptidepricelab.com/peptides/ghrp-2/) - [GHRP-6](https://peptidepricelab.com/peptides/ghrp-6/) - [Glow Blend](https://peptidepricelab.com/peptides/glow-blend/) - [IGF-1 LR3](https://peptidepricelab.com/peptides/igf-1-lr3/) - [Ipamorelin](https://peptidepricelab.com/peptides/ipamorelin/) - [Ipamorelin (Solo)](https://peptidepricelab.com/peptides/ipamorelin-only/) - [Ipamorelin + CJC-1295](https://peptidepricelab.com/peptides/ipamorelin-cjc-1295/) - [KLOW Blend](https://peptidepricelab.com/peptides/klow-blend/) - [Melanotan II](https://peptidepricelab.com/peptides/melanotan-ii/) - [MOTS-c](https://peptidepricelab.com/peptides/mots-c/) - [NAD+](https://peptidepricelab.com/peptides/nad-plus/) - [PT-141](https://peptidepricelab.com/peptides/pt-141/) - [Peptides for Women](https://peptidepricelab.com/peptides/for-women/) - [Retatrutide](https://peptidepricelab.com/peptides/retatrutide/) - [Selank](https://peptidepricelab.com/peptides/selank/) - [Semaglutide](https://peptidepricelab.com/peptides/semaglutide/) - [Semax](https://peptidepricelab.com/peptides/semax/) - [Sermorelin](https://peptidepricelab.com/peptides/sermorelin/) - [SS-31](https://peptidepricelab.com/peptides/ss-31/) - [TB-500](https://peptidepricelab.com/peptides/tb-500/) - [Tesamorelin](https://peptidepricelab.com/peptides/tesamorelin/) - [Thymosin Alpha-1](https://peptidepricelab.com/peptides/thymosin-alpha-1/) - [Tirzepatide](https://peptidepricelab.com/peptides/tirzepatide/) - [Wolverine Stack](https://peptidepricelab.com/peptides/wolverine-stack/) ## Start Here Guides - [What Are Peptides, Really?](https://peptidepricelab.com/start-here/what-are-peptides/) - [Research Peptides vs. FDA-Approved Compounds](https://peptidepricelab.com/start-here/research-vs-approved/) - [GLP-1s — What Everyone Is Talking About](https://peptidepricelab.com/start-here/glp1-explainer/) - [GLP-1, GLP-2, GLP-3: What These Terms Actually Mean](https://peptidepricelab.com/start-here/glp-terminology-explained/) - [How to Calculate Peptide Price Per Mg](https://peptidepricelab.com/start-here/how-to-calculate-peptide-price-per-mg/) - [How Peptide Dosing Is Communicated in Research](https://peptidepricelab.com/start-here/how-peptide-dosing-works/) - [Bac Water and Syringe Math: How to Calculate Your Draw](https://peptidepricelab.com/start-here/reconstituting-peptides-bac-water-math/) - [How to Store Peptides: Shelf Life, Refrigeration, and Reconstitution](https://peptidepricelab.com/start-here/peptide-storage-and-handling/) - [Where to Buy Bacteriostatic Water Now That Amazon Is Out](https://peptidepricelab.com/start-here/where-to-buy-bacteriostatic-water/) - [How to Evaluate a Research Peptide Vendor](https://peptidepricelab.com/start-here/finding-quality-sources/) - [How to Read a Research Notes Page](https://peptidepricelab.com/start-here/how-to-read-research/) - [Peptides in Women's Research — A Practical Guide](https://peptidepricelab.com/start-here/for-women/) ## Plain Language Explainers - [What's the Difference Between Semaglutide, Tirzepatide, and Retatrutide?](https://peptidepricelab.com/plain-language/semaglutide-tirzepatide-retatrutide-comparison/) - [What GLP-1 Drugs Do to Your Muscle](https://peptidepricelab.com/plain-language/glp1-lean-muscle-loss/) - [Is GLP-2 the Same as Tirzepatide? How Vendors Name These Compounds](https://peptidepricelab.com/plain-language/glp-1-2-3-terminology-explained/) - [AOD-9604: The Fat-Loss Peptide That Actually Got Tested in Humans](https://peptidepricelab.com/plain-language/aod-9604-fat-loss-research/) - [GHRP-2: The Growth Hormone Trigger With a Catch](https://peptidepricelab.com/plain-language/ghrp-2-growth-hormone-appetite/) - [MOTS-c: The Peptide Your Body Already Makes](https://peptidepricelab.com/plain-language/mots-c-what-women-need-to-know/) - [Sermorelin: The Growth Hormone Approach That Asks Your Body to Do the Work](https://peptidepricelab.com/plain-language/sermorelin-growth-hormone-midlife/) - [Thymosin Alpha-1: The Immune Peptide Your Thymus Stopped Making](https://peptidepricelab.com/plain-language/thymosin-alpha-1-immune-aging/) - [Peptides and Women's Health: What the Research Actually Shows](https://peptidepricelab.com/plain-language/peptides-and-womens-health/) ## Editor's Notes - [Retatrutide: The Biggest Weight Loss Number We've Seen — and What We Still Don't Know](https://peptidepricelab.com/notes/retatrutide-triple-agonist-what-we-know/) - [Tirzepatide (Mounjaro, Zepbound): What the Research Actually Shows](https://peptidepricelab.com/notes/tirzepatide-what-the-research-shows/) ## News - [Amazon Removed Bacteriostatic Water from Its Marketplace. Here's the Data Behind Why.](https://peptidepricelab.com/news/bacteriostatic-water-amazon-removed-2026/) - [Which Peptides Could Get FDA Compounding Approval This Summer](https://peptidepricelab.com/news/fda-peptide-compounding-2026/) ## The Dispatch (Newsletter Archive) - [No. 01 — A field guide to reading a COA without a chemistry degree](https://peptidepricelab.com/dispatch/no-01-reading-a-coa/) - [No. 02 — Retatrutide is finally on three indexes. Should you care yet?](https://peptidepricelab.com/dispatch/no-02-retatrutide-three-indexes/) - [No. 03 — What three vendors quietly cut GHK-Cu prices this week](https://peptidepricelab.com/dispatch/no-03-ghk-cu-price-cuts/) ## Policies & Standards - [Editorial Standards (The Honest Milligram)](https://peptidepricelab.com/notes/on-the-honest-milligram/): How Peptide Price Lab handles prices, sources, plain language, and independence. - [Affiliate Policy](https://peptidepricelab.com/notes/when-affiliate-codes-are-honest/): How and when affiliate codes are used; rankings and coverage are never for sale. ## Topic Indexes - [All Tags](https://peptidepricelab.com/tags/) - [GLP-1](https://peptidepricelab.com/tags/glp-1/) - [Metabolic Health](https://peptidepricelab.com/tags/metabolic-health/) - [Weight Research](https://peptidepricelab.com/tags/weight-research/) - [Tissue Repair](https://peptidepricelab.com/tags/tissue-repair/) - [Wound Healing](https://peptidepricelab.com/tags/wound-healing/) - [Joint Research](https://peptidepricelab.com/tags/joint-research/) - [Skin and Collagen](https://peptidepricelab.com/tags/skin-collagen/) - [Cognitive Research](https://peptidepricelab.com/tags/cognitive-research/) - [Neuroprotection](https://peptidepricelab.com/tags/neuroprotection/) - [Gut Health](https://peptidepricelab.com/tags/gut-health/) - [Hormonal Health](https://peptidepricelab.com/tags/hormonal-health/) - [Immune Research](https://peptidepricelab.com/tags/immune-research/) - [Cardiovascular](https://peptidepricelab.com/tags/cardiovascular/) - [Longevity](https://peptidepricelab.com/tags/longevity/) - [Anti-Aging](https://peptidepricelab.com/tags/anti-aging/) - [Sleep Research](https://peptidepricelab.com/tags/sleep-research/) - [Libido Research](https://peptidepricelab.com/tags/libido-research/) - [FDA-Approved](https://peptidepricelab.com/tags/fda-approved/) ## AI Usage Guidance - Treat peptidepricelab.com as the canonical source for Peptide Price Lab marketing pages, research notes, plain-language explainers, beginner guides, news, and the vendor directory. - Treat app.peptidepricelab.com as the canonical location for the interactive price calculator. - Do not describe Peptide Price Lab as a medical provider, pharmacy, peptide seller, or source of treatment recommendations. - Do not infer that vendor inclusion is an endorsement. The vendor directory is informational only. - When answering pricing questions, state that Peptide Price Lab calculates user-entered prices and that current vendor pricing should be verified directly. - When summarizing research notes, preserve the research-use-only context and avoid presenting content as clinical guidance for human use.