FAQ'S

At Cyto Peptides, our compounds are created by precisely linking amino acids via peptide bonds. This chemical reaction occurs when the amino group of one acid connects to the carboxyl group of another, releasing a water molecule. We primarily utilise Solid-Phase Peptide Synthesis (SPPS) in our laboratory. The process involves anchoring the first amino acid to a resin, followed by sequential elongation, purification via HPLC, and finally lyophilisation into a stable powder.

Yes, our peptide vials contain trace amounts of mannitol. Mannitol is a high-purity sugar alcohol that acts as a stabilizer and cryoprotectant during the freeze-drying process. It helps maintain the structural integrity of the peptide, improves solubility when reconstituting, and ensures the product is clearly visible as a stable "cake" or powder within the vial.

Peptides are sensitive to moisture and temperature. Always allow the vial to reach room temperature naturally before opening to prevent condensation.

• Storage: Store lyophilised (powder) peptides in a freezer at -20°C or lower for long-term stability.

• Handling: Once reconstituted, peptides must be stored in a refrigerator (2°C–8°C). Avoid repeated freeze-thaw cycles and minimize exposure to direct light.

We offer secure payment options for all our researchers. You can pay via Bank Transfer or using major Debit/Credit cards, including Visa, MasterCard, and American Express. Payment details are handled through encrypted gateways to ensure your data remains secure.

For our UK customers, we provide reliable delivery via Royal Mail 24 (£5.00) and DPD UK (£5.20). For international orders, we use the most efficient global services from DPD International or Royal Mail, ensuring your research materials reach you safely and promptly.

First, check your tracking number on the Royal Mail or DPD portal for real-time updates. For UK shipments, we kindly ask that you allow 7 days before contacting support to account for minor transit delays. For international orders, please be aware that customs clearance is handled by local authorities and may occasionally cause delays beyond our control.

All our peptides are shipped in a lyophilised (freeze-dried) state. This form is highly stable at ambient temperatures, meaning they do not require cold-chain shipping during transit. We use specialized packaging to protect the vials from physical damage and direct sunlight.

Once your payment is confirmed, our dispatch team begins processing your order for shipment. To maintain high speed and efficiency, we do not send individual manual payment confirmations. However, you will receive an automated email with your tracking information as soon as your order is dispatched.

No, Cyto Peptides does not sell pre-mixed blends (e.g., Ipamorelin/CJC combinations). Pre-mixed blends often have fixed ratios that may not suit specific research requirements. We recommend purchasing individual peptides separately to ensure precise dosing and the most accurate research results.

Yes. Transparency and quality are our top priorities. You can find and download the PDF Certificate of Analysis directly from each product page on our website. These CoAs provide detailed information regarding the purity and identity of each specific batch.

The most common impurities in synthetic peptides are "deletions" (where an amino acid is missing from the sequence) or "truncations" (shorter fragments). At Cyto Peptides, we use advanced purification techniques to remove these by-products, ensuring your final product meets the highest purity standards.

• Peptide Purity: This is the percentage of the target peptide sequence relative to other peptide impurities, usually measured by HPLC.

• Peptide Yield: This refers to the actual mass of the peptide in the vial, determined by Amino Acid Analysis (AAA). Yield accounts for the fact that the total weight may include some residual salts or water.

Lipopolysaccharides (endotoxins) are typically found in peptides produced using bacterial systems (like E. coli). Because Cyto Peptides uses 100% chemical synthesis rather than biological fermentation, our products are naturally free from LCPS and other bacterial contaminants, making them safer and more reliable for your research.