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Frequently Asked Questions
Everything you want to know about our peptides, shipping and orders.
Research peptides are synthetically produced peptide sequences used exclusively in scientific research and laboratory analysis. They are used in areas such as molecular biology, biochemistry and pharmaceutical research — not for human use.
All our peptides have a purity of at least ≥98.9%, verified by HPLC analysis (High Performance Liquid Chromatography). High purity is essential for reproducible results in scientific experiments.
The identity of our peptides is confirmed by LC-MS analysis (Liquid Chromatography Mass Spectrometry). This allows the molecular mass and correct peptide sequence to be unambiguously verified.
No. Our products are exclusively for scientific research purposes and are not approved for human or veterinary use.
All orders are dispatched directly from Germany — discreetly and securely. We ship with DHL, DPD, Hermes and UPS.
Within Germany we typically deliver in 2–3 business days. To other EU countries (AT, CH) it takes 3–5 business days, rest of Europe 4–6 business days.
Orders with a value of €100 or more (DE) are delivered free of charge. For Europe a shipping fee of €9.90 applies.
We accept credit card as well as cryptocurrencies — ETH, USDT and USDC (via DePay).
Lyophilised peptides should be stored at −20 °C in a dry environment (long-term). Short-term storage at 2–8 °C is also possible. More details can be found in our Storage Guide.
Yes. Lyophilised peptides must be reconstituted with sterile Bacteriostatic Water (BAC Water) before use. BAC Water is available in our Accessories section.
The three peptides differ in their mechanism: Semaglutide activates one receptor (GLP-1), Tirzepatide two (GLP-1 + GIP) and Retatrutide three (GLP-1 + GIP + Glucagon). In clinical trials, Retatrutide showed the strongest effect (~24% reduction), followed by Tirzepatide (~22.5%) and Semaglutide (~15%). Detailed information: What is Retatrutide? · What is Tirzepatide? · What is Semaglutide?
Based on published Phase 2/3 data: Retatrutide leads with ~24% body weight reduction (TRIUMPH, 48 weeks), followed by Tirzepatide with ~22.5% (SURMOUNT-1, 72 weeks) and Semaglutide with ~15% (STEP-1, 68 weeks). All three are available at Peptid24 in HPLC-verified quality.
GLP-1 (Glucagon-like Peptide-1) is an endogenous incretin hormone. GLP-1 agonists mimic its action: they promote insulin release, inhibit glucagon and slow gastric emptying. The result: reduced appetite and stabilised blood sugar. All our active compounds (Semaglutide, Tirzepatide, Retatrutide) contain a GLP-1 component.
Slowly inject sterile BAC Water along the inner wall of the vial and gently swirl — do not shake. The standard concentration is 1–2 mg/ml. Step-by-step instructions can be found in our Application Guide.