Tirzepatide
Dual agonist: GIP + GLP-1 receptors
Potency loss over time
Estimated potency retained (%) per storage condition. Hover the chart for details.
⚠ A structural estimate, derived from each compound's sequence length, cyclisation and oxidation-, deamidation- and light-sensitive residues. Indicative only — not lab-measured per batch.
Time in body
How much of a single dose remains over time, modelled from the terminal half-life. Illustrative — not a dosing tool.
Half-life ~5 d (human PK) · effectively cleared (~97%) after ~25 d (5 half-lives).
Research context only — not dosing guidance. · Source: FDA Mounjaro/Zepbound labels
| # | Suppliers | Price | €/mg | Price trend (6 months) | Purity | COA | Score ⓘ | |
|---|---|---|---|---|---|---|---|---|
| 1 |
 PEP
PEPTIDMARKT
in stock 🇩🇪 DE
| €45 | €9.0/mg | 99.7% | ✔ HPLC | Shop → | ||
| 2 |
 RES
RESEARCH PEPTIDES EUROPE
in stock 🇪🇸 ES
| €129.99 | €26.0/mg | 99.8% | ✔ HPLC/LC-MS | Shop → |
| # | Suppliers | Price | €/mg | Price trend (6 months) | Purity | COA | Score ⓘ | |
|---|---|---|---|---|---|---|---|---|
| 1 |
 ADR
ADRIA SCIENCE
in stock 🇸🇮 SI
| €37.9 | €3.79/mg | 99% | ✔ HPLC | Shop → | ||
| 2 |
 PEP
PEPTIDE KONING
in stock 🇳🇱 NL
| €58.46 | €5.85/mg | ▼11.6% | 99% | ✔ COA | Shop → | |
| 3 |
 RET
RETA 24/7
in stock 🇳🇱 NL
| €59.99 | €6.0/mg | ▲4.4% | 99% | ✔ COA | Shop → | |
| 4 |
 CRY
CRYSTAL PEPTIDES
in stock 🇧🇬 BG
| €99 | €9.9/mg | 99% | ✔ HPLC | Shop → | ||
| 5 |
RES
RESEARCH PEPTIDES EUROPE
out of stock 🇪🇸 ES
| €299 | €29.9/mg | 99.8% | ✔ HPLC/LC-MS | Notify me |
| # | Suppliers | Price | €/mg | Price trend (6 months) | Purity | COA | Score ⓘ | |
|---|---|---|---|---|---|---|---|---|
| 1 |
 NEX
NEXTGEN PEPTIDES
in stock 🇳🇱 NL
| €74.95 | €3.75/mg | ▲1.9% | 99% | ✔ HPLC | Shop → | |
| 2 |
PEP
PEPTIDE KONING
in stock 🇳🇱 NL
| €89.96 | €4.5/mg | ▼11.6% | 99% | ✔ COA | Shop → | |
| 3 |
RET
RETA 24/7
in stock 🇳🇱 NL
| €95 | €4.75/mg | ▼4.2% | 99% | ✔ COA | Shop → | |
| 4 |
CRY
CRYSTAL PEPTIDES
in stock 🇧🇬 BG
| €159.99 | €8.0/mg | 99% | ✔ HPLC | Shop → |
| # | Suppliers | Price | €/mg | Price trend (6 months) | Purity | COA | Score ⓘ | |
|---|---|---|---|---|---|---|---|---|
| 1 |
PEP
PEPTIDE KONING
in stock 🇳🇱 NL
| €125.96 | €4.2/mg | ▲0.2% | 99% | ✔ COA | Shop → | |
| 2 |
RET
RETA 24/7
in stock 🇳🇱 NL
| €129.99 | €4.33/mg | ▲0.5% | 99% | ✔ COA | Shop → | |
| 3 |
CRY
CRYSTAL PEPTIDES
in stock 🇧🇬 BG
| €199.99 | €6.67/mg | 99% | ✔ HPLC | Shop → |
| # | Suppliers | Price | €/mg | Price trend (6 months) | Purity | COA | Score ⓘ | |
|---|---|---|---|---|---|---|---|---|
| 1 |
PEP
PEPTIDE KONING
in stock 🇳🇱 NL
| €161.95 | €4.05/mg | ▲7.1% | 99% | ✔ COA | Shop → |
| # | Suppliers | Price | €/mg | Price trend (6 months) | Purity | COA | Score ⓘ | |
|---|---|---|---|---|---|---|---|---|
| 1 |
RET
| €189.99 | €3.17/mg | ▼5.4% | 99% | ✔ COA | Shop → | |
| 2 |
PEP
PEPTIDE KONING
in stock 🇳🇱 NL
| €206.96 | €3.45/mg | ▼7.4% | 99% | ✔ COA | Shop → |
Prices manually checked and updated monthly — source: publicly available supplier data. No affiliate links, no paid placement.
Tirzepatide
Mechanism, evidence level, EU status and COA guidance per compound. No dosages, no protocols — that belongs with a doctor.