PepsTracker › Blog › Cheapest Tirzepatide 2026
Last updated: June 09, 2026 · 12 vendors tracked · Prices updated daily
Glowlab for 15% offTirzepatide is a GLP-1/GIP dual agonist — dual GIP and GLP-1 receptor agonist that has captured enormous research attention. Studies explore its effects on insulin sensitivity, body composition, and metabolic function. The table below compares all 12 vendors we track, sorted by cost-per-mg after applying discount codes. All products are for research use only.
| # | Vendor | Size | List Price | After Discount | $/mg | Code | Buy |
|---|---|---|---|---|---|---|---|
| 🥇 | Labsourced | 30.0mg | $109.00 | $92.65 | $3.09/mg | Glowlab | Shop → |
| 🥈 | Ion Peptides | 10.0mg | $49.00 | $41.65 | $4.17/mg | Glowlab | Shop → |
| 🥉 | Fusion Peptide 🎁 BOGO | 10.0mg | $50.49 | $42.92 | $4.29/mg | pepstracker | Shop → |
| #4 | EZ Peptides | 10.0mg | $53.00 | $47.70 | $4.77/mg | GlowLab | Shop → |
| #5 | AMP Ameano Peptides | 10.0mg | $53.00 | $47.70 | $4.77/mg | pepstracker | Shop → |
| #6 | NuraPeptide | 10.0mg | $69.00 | $58.65 | $5.87/mg | pepstracker | Shop → |
| #7 | LA Peptides | 15.0mg | $99.99 | $89.99 | $6.00/mg | pepstracker | Shop → |
| #8 | Glacier Aminos | 10.0mg | $68.99 | $62.09 | $6.21/mg | Glowlab | Shop → |
| #9 | Inno Amino | 10.0mg | $79.00 | $67.15 | $6.71/mg | pepstracker | Shop → |
| #10 | GLP-1 Research Lab | 10.0mg | $70.00 | $70.00 | $7.00/mg | link only | Shop → |
| #11 | Mile High Compound | 10.0mg | $89.99 | $80.99 | $8.10/mg | Glowlab | Shop → |
| #12 | AtomiK Labz | 10.0mg | $99.00 | $84.15 | $8.41/mg | Glowlab15 | Shop → |
Vendors sell different vial sizes — comparing sticker prices is misleading. A $30 vial of 5mg works out to $6.00/mg, while a $55 vial of 10mg is only $5.50/mg. The $55 option is actually cheaper per unit of research material.
📐 Formula: Discounted price ÷ mg = cost per mg
Example: $45 after discount ÷ 10mg = $4.50/mg. The table above calculates this automatically for every vendor, so you can compare apples to apples instantly.
When evaluating vendors for Tirzepatide, also check for: Certificate of Analysis (COA) availability, third-party HPLC or mass spectrometry verification, US-based shipping if timing is important, and responsive customer support.
Labsourced lists Tirzepatide at $109.00 for 30.0mg. Apply 15% off with code Glowlab to bring your price to $92.65 — $3.09 per milligram.
Ion Peptides lists Tirzepatide at $49.00 for 10.0mg. Apply 15% off with code Glowlab to bring your price to $41.65 — $4.17 per milligram.
Fusion Peptide lists Tirzepatide at $50.49 for 10.0mg. Apply 15% off with code pepstracker to bring your price to $42.92 — $4.29 per milligram.
EZ Peptides lists Tirzepatide at $53.00 for 10.0mg. Apply 10% off with code GlowLab to bring your price to $47.70 — $4.77 per milligram.
AMP Ameano Peptides lists Tirzepatide at $53.00 for 10.0mg. Apply 10% off with code pepstracker to bring your price to $47.70 — $4.77 per milligram.
Tirzepatide is a dual GIP (glucose-dependent insulinotropic polypeptide) and GLP-1 receptor agonist — often called a "twincretin" because it activates two different incretin hormone receptors simultaneously. Developed by Eli Lilly, it's the active compound in Mounjaro and Zepbound. Unlike semaglutide, which targets only GLP-1 receptors, tirzepatide's dual mechanism appears to create synergistic metabolic effects. The GIP receptor component is now understood to play a critical role in adipose tissue regulation — GIP receptors in fat cells respond to tirzepatide in ways that amplify GLP-1's metabolic signaling. This dual action is why clinical trials have shown tirzepatide producing larger effects than comparably-dosed semaglutide in most metabolic endpoints.
Tirzepatide is a 39-amino acid peptide with two fatty acid modifications — structurally more complex than semaglutide's 31 amino acids with one modification. This synthesis complexity explains why tirzepatide research compounds are generally more expensive. Key price drivers include the longer peptide chain requiring more synthesis steps, the dual fatty acid modification requiring precise C20 diacid attachment, higher demand relative to supply pushing prices up compared to the more established semaglutide supply chain, and newer manufacturing infrastructure meaning fewer suppliers with high-capacity production.
Tirzepatide-specific considerations when evaluating vendors: **Purity standards**: As a more complex molecule, tirzepatide is harder to synthesize at high purity. Request COAs showing HPLC purity ≥97%. Lower-purity tirzepatide may contain related impurities from incomplete synthesis. **Molecular weight verification**: Tirzepatide's exact molecular weight is 4813.5 Da. Mass spectrometry results should confirm this to verify the compound isn't a truncated or misfolded synthesis product. **Batch freshness**: Given the complexity and higher cost, check when the batch was synthesized. Fresh batches (within 6 months) are preferable for sensitive research applications.
**Tirzepatide vs Semaglutide cost comparison** At best pricing, tirzepatide runs $3.09/mg vs semaglutide's $2.75/mg — about 12% more expensive per mg. Given tirzepatide's more complex synthesis, this premium is understandable. For researchers with tighter budgets, semaglutide remains the more economical GLP-1 compound. **Tirzepatide vs Retatrutide** Retatrutide adds glucagon agonism to tirzepatide's GIP+GLP-1 mechanism. Early phase 3 data shows even larger effects, but at a $4.50/mg price point compared to tirzepatide's $3.09/mg. Retatrutide is for researchers specifically studying glucagon receptor interactions.
Based on our current data across 12 vendors, Labsourced currently offers the best cost-per-mg — $3.09/mg when you use code Glowlab. Always compare $/mg rather than sticker price since vial sizes vary significantly.
Price variation reflects batch size, synthesis purity, third-party testing costs, and shipping infrastructure. Cheaper doesn't always mean lower quality — some vendors simply operate more efficiently. That said, always verify a Certificate of Analysis (COA) before purchasing from any vendor.
Divide the discounted price by the milligrams per vial. Example: $50 for 10mg = $5.00/mg, while $35 for 5mg = $7.00/mg. The $50 option is cheaper per unit even though the upfront cost is higher. Our table above handles this calculation automatically.
Yes — all discount codes are affiliate codes we maintain with each vendor. Apply the code at checkout or click our Shop link which may apply it automatically. Codes are verified regularly but prices and availability can change — always confirm at checkout.
Our comparison tool shows current pricing across all 12 vendors with discount codes already applied — updated every day.
📊 See Live Prices →