FAQ

A peptide is a group of two or more amino acids attached by a peptide bond. Amino acids are known as the building blocks of protein and play a crucial role in many of your body’s natural functions including stimulating hormonal activity or repairing damage to the body. Although they are produced naturally by our bodies, they can also be derived from animal or plant sources or be manufactured synthetically.

Our peptides are 99%+ purity and free of heavy metals and other contaminants. We only work with the world’s finest manufacturers to guarantee quality, and we third-party-lab test our products regularly to maintain our high standards.

Every peptide batch we receive gets sent to an independent third party testing lab to be analyzed and tested for identity of the peptides, purity, and concentration. All peptides are labeled with their corresponding batch number.

If you’d like to verify the authenticity of a lab report directly with the testing laboratory, contact us and we will provide instructions for doing so.

Yes. Alongside our catalogue we support complex sequence synthesis and customised modified peptides — including phosphorylation, fluorescent labelling and PEG modification — with a one-stop service from solution design through to delivery. Volumes range from milligrams to kilograms.

Tell us what you need on our contact page and our R&D team will scope it with you. You can read more about our facilities on the about page.

Once you have reconstituted your peptides, you should store them in refrigerated conditions. Reconstituted peptides will last a minimum of 4 weeks under these storage conditions.

Peptides are supplied as a lyophilised (freeze-dried) powder in sealed vials, typically packaged as 10 vials per box. Freeze-drying is what makes the material stable for long-term cold storage and transport. Keep unopened vials in a cool, dry place away from direct light and high temperature.

Yes. Our catalogue includes the consumables researchers usually order alongside peptides:

• Bacteriostatic water (benzyl alcohol 0.9%) in 3 ml and 10 ml
• Phosphate buffered saline in 3 ml and 10 ml
• Acetic acid water 0.6%

Because these are liquids they are heavy to ship, so freight is calculated in batches — if you have a large order, contact us before checkout and we will confirm the best shipping arrangement.

We support online orders paid by Bitcoin and other cryptocurrencies (paid instantly at checkout), as well as credit/debit card, Apple Pay, Google Pay, bank transfer, Zelle, Cash App, Chime, E-Transfer and Revolut — for these, we email you the payment details after you place your order. Orders can also be placed through Alibaba — please contact us to arrange this.

Every vial is labelled with its batch number, and each batch has a corresponding third-party test report covering identity, purity and concentration. We follow an ISO 9001 quality management system and can supply the complete quality inspection report for your batch on request.

Most catalogue items are sold by the box, with a minimum of 10 vials. Individual product pages list the available specifications — for example 5 mg, 10 mg or 15 mg per vial — and pricing updates as you select. For bulk or research-scale quantities, talk to our team.

We ship double-clear to-door express packages via DHL, UPS, FedEx, TNT and EMS. Our shipping agents handle local customs clearance and deliver directly to your address. Typical delivery time is 10-12 days.

Full timings, expedited options and costs are set out in our Shipping & Delivery policy.

You will receive a tracking number once your order has shipped. Please note that tracking information usually only becomes available after the package clears customs, so there can be a delay of a few days before updates appear.

You can check progress any time at 17track.net.

Shipping is calculated at checkout based on your location and the total weight of your order. Expedited DHL or FedEx services are available on request — note that these can require you to assist with customs clearance and any local taxes or duties.

We offer a refund where the product is damaged or defective on arrival, the wrong product was shipped, or the product is unused and still in its original unopened packaging.

Please contact us within 7 days of receiving your order with your order number and photographs of the issue. Full conditions are in our Refund Policy.

Before opening a claim, please:

• Check with neighbours or your building’s mailroom — parcels are sometimes left nearby.
• Inspect all entry points, including side and rear doors.
• Call the carrier with your tracking number; they can often locate the parcel.

If the parcel is still missing after 7 days, or the carrier cannot locate it, contact us. We will file a claim and open an investigation, and if the parcel is confirmed lost we will resend your order at no additional cost.

Our sales team replies within 24 hours. Each consultant is listed with their own email, WhatsApp and Telegram on the contact page, so you can reach the right person directly.

For general enquiries: info@lillpeptide.com · WhatsApp +852 4450 1348.