Certificate of Analysis - FAQs

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In-house CoAs are available for download on each product page. These are not batch-specific. They confirm the identity and minimum purity of each product based on our internal HPLC and MS testing. CoAs are not included with orders. 

To download one, visit the product page and select the relevant item from the dropdown. We encourage researchers to arrange their own independent testing if batch-level verification is required for their work.

A typical in-house CoA includes:

• Peptide identity: Sequence, molecular formula and molecular weight.
• Purity: Determined by HPLC analysis, expressed as a percentage (typically ≥98% for most products).
• Mass spectrometry: Confirmation of molecular identity via MS or LC-MS.
• Appearance: Physical description of the lyophilised product.
• Batch/lot number: For reference.

We ship internationally to most countries. However, we cannot ship to countries under comprehensive UK/international trade sanctions, or where importing research peptides is prohibited.

Currently restricted destinations include (but are not limited to):

• North Korea
• Iran
• Syria
• Cuba
• Russia and Belarus (restricted due to sanctions)

Some countries also have specific import controls on peptides that may result in customs seizure. We ship in good faith but cannot guarantee customs clearance in every jurisdiction. It is the buyer's responsibility to check their own import regulations.

If you are unsure whether we can ship to your country, drop us a message before ordering.

We accept the following payment methods:

• Bank transfer (BACS/Faster Payments): Bank details are provided at checkout. Orders are processed once payment clears.
• Card payment: Visa, Mastercard and other major cards accepted at checkout.

All payments are processed in GBP (British Pounds). For international bank transfers, your bank may apply currency conversion fees which are outside our control.

Payment is required in full before dispatch. If you have paid but it has not shown up yet, allow up to one working day for bank transfers to clear before getting in touch.

Orders are processed in the order they are received, once payment is confirmed:

• Payment confirmed before 3pm: Order is usually dispatched the same working day.
• Payment confirmed after 3pm: Order is dispatched the next working day.
• Weekends and bank holidays: Orders placed over the weekend or on bank holidays are processed the next working day.

Once dispatched, you will receive an email with tracking information. During busy periods, processing may take slightly longer. If there is a delay we will let you know.

If your parcel has not arrived in the expected timeframe, check the tracking number from your dispatch email first. Common reasons include:

• The parcel is still in transit (especially international shipments, which can be variable).
• A delivery attempt was made and the parcel is at a local sorting office or collection point.
• The parcel has been delivered to a neighbour or safe place (check any "left with" notes on the tracking).

If tracking shows no movement for a while, or the expected delivery date has passed, drop us an email with your order reference. We will open an investigation with the carrier.

If customs reject a parcel, one of two things usually happens:

• Returned to sender: The parcel is sent back to us. Once received, we will contact you to discuss options: reshipment to a different address or a partial refund (minus shipping).
• Destroyed by customs: Some customs authorities destroy seized items rather than returning them. In this case we are unable to offer a refund, as the loss is not caused by a fault in the product or service.

We strongly recommend that international buyers check the legality of importing research peptides into their country before ordering. We provide accurate customs declarations and documentation, but compliance with your country's import regulations is your responsibility.

Important: Customs seizure or rejection is not covered by our refund policy. This includes parcels held indefinitely, destroyed or returned due to the destination country's regulations. 

Yes. The Gpharma Pen is designed for safe, controlled self-administration. Each dose is pre-measured, so you always get a consistent amount. The pen uses ultra-fine, medical-grade micro-needles - quick, clean, and virtually painless when used as directed. 

No - our Pen is specifically created for at-home use. You'll receive clear instructions and support materials with your order.