Frequently asked questions

Eligible orders placed before 4 PM on a working day are dispatched the same day. Orders placed later are processed on the next available dispatch cycle. Working days exclude weekends and bank holidays.

Royal Mail Tracked 48 costs £3.65, and Tracked 24 costs £4.49. Standard Tracked 48 delivery is free when eligible merchandise totals £49.99 or more after discounts. Your delivery charge is shown at checkout.

Royal Mail Tracked 48 has a 2–3 working day delivery aim; Tracked 24 has a 1–2 working day aim. These estimates begin after dispatch and are not guaranteed arrival dates.

Tracking information is provided for tracked services once your order has been dispatched. If you cannot find your tracking details, contact Lynx with your order number.

Contact Lynx with your order number so we can review the carrier information. Once the loss is verified, we'll arrange a replacement at no extra cost for the goods or delivery. See how a lost-parcel claim is reviewed.

Checkout currently accepts UK delivery addresses only. See Delivery Information for the available UK services.

Every peptide batch released for sale undergoes independent testing by an external third-party laboratory. The available certificate records the methods and results for the product and vial size tested.

Search the Quality Assurance library by product, vial size or report reference, then select View Report to open the certificate PDF. Published reports are also linked from the matching product variant.

Reversed-phase HPLC separates components and reports chromatographic purity under the stated method. It does not establish that every possible impurity is absent or measure the total peptide amount in a vial.

It measures mass-to-charge information that can be compared with the expected molecular mass to help assess identity. A matching mass alone does not fully characterise every structural detail.

Where reported, it compares the measured peptide amount with the label claim using the stated analytical procedure. This is a different measurement from chromatographic purity.

A certificate is linked only when it can be matched to the exact product and vial size. If a report has not been published, it is shown as unavailable. Contact Lynx if you need help finding documentation for a particular variant.

Secure Pay by Bank is provided through Fena. Cryptocurrency and manual bank transfer may also be offered when available at checkout. Checkout shows the methods currently available for your order; Lynx does not ask you to enter card details.

No, you can check out without signing in. If you already have a Lynx account, you can use the Log in option at checkout.

Buy eligible quantities of the same product variant to receive the saving shown on its product page and in your basket. Research sets have their own pricing. Your discounts are confirmed at checkout before you pay.

Use the discount or affiliate code field in checkout to apply a valid code. Eligibility and any saving are shown before payment. Welcome codes give eligible new subscribers 10% off a first order’s merchandise, exclude shipping and are limited to one use per customer.

An order awaiting payment has not yet been confirmed as paid. Lynx confirms payment once it has been verified; manual bank transfers must be checked before dispatch. Follow the payment instructions and contact Lynx with your order number if you need help with the status.

Contact Lynx as soon as possible with your order number and the change you need. If your order has not been prepared for dispatch, we may be able to change or cancel it. Once it has been prepared or handed to the carrier, changes may no longer be possible.

Approved affiliates can earn 20% commission on eligible referred merchandise. Shipping, free promotional items, cancelled or refunded value and self-referrals do not earn commission. Approved, payable commissions are processed on a weekly cycle without a guaranteed payout day or receipt time. Visit the Affiliate Programme for details.

Contact Lynx with your order number, the affected items and clear photographs of the damage where relevant. Keep the goods and packaging while we verify the issue. Once verified, we'll arrange a replacement at no extra cost.

Contact Lynx with your order number and details of the item you received. Include a clear photograph where relevant and keep the goods and packaging while we verify the issue. Once verified, we'll arrange a replacement at no extra cost.

Contact Lynx with your order number and tell us which item is missing. We will review the order and packing information, and may ask for photographs of what arrived. Once the omission is verified, we'll arrange a replacement at no extra cost.

We check your order details and carrier tracking to verify whether the parcel is lost. A delay alone does not confirm a loss. Once the loss is verified, we'll arrange a replacement at no extra cost; see Returns Information for details.

Research peptides cannot be returned once dispatched because their storage, handling and chain of custody can no longer be verified. For verified damaged or incorrect peptide issues, you do not need to return the affected products. Your statutory rights are unaffected; read Returns Information for the full policy.

Use Contact Lynx with your order number, a description of the issue and clear photos where relevant. Keep the affected product and packaging until the claim has been reviewed. Do not return items unless Lynx support asks you to do so.

Lynx peptides are supplied as lyophilised powder in sealed vials. Check the product page for the available vial strengths and product-specific information.

Keep unopened vials sealed and protected from light and moisture. Store at −20°C for longer-term storage and follow any product-specific guidance.

Lyophilised means freeze-dried. The product is supplied as a dry powder for laboratory research; check its product information for the supplied format.

Bacteriostatic Water 10 mL is sold separately. A free vial may be added under the qualifying-order promotion, subject to the minimum spend and stock availability. Checkout shows whether your order qualifies.

Choose a size or strength on the product page to see its price and availability. Available lab reports are linked to the matching product and vial size.

Check the Shop or choose a variant on its product page to see availability. Out-of-stock or pending variants cannot be ordered until they are available for sale.

Products are supplied solely for controlled laboratory and research purposes. They are not intended for human or veterinary consumption or administration. Purchasers must acknowledge that they are 21 or older; read our research-use information.

Lynx Peptides is the trading name of XNYL RESEARCH LTD, a company registered in England and Wales with company number 17430251. Company information is available on the About Lynx page.

Lynx orders are prepared and dispatched from within the UK. Eligible orders follow the working-day schedule described in Delivery Information.

Use Contact Lynx for product, lab report, payment or order questions, and include your order number where relevant. Our support team replies within 1 working day.

Visit About Lynx for our research-use policy, testing approach and company information. The Quality Assurance page contains available certificates, and the Research Library provides sourced research overviews.