Peptide Works
What Peptide Works Stocks, and How It Is Organised
The Peptide Works catalogue currently runs to 87 listings. That number is smaller than some suppliers advertise, and deliberately so: a catalogue is only as good as the documentation behind it, and a range that can actually be supported with batch records is more useful to a working laboratory than a longer list that cannot.
Rather than being organised by what a compound is said to do, the catalogue is organised by the form the material arrives in. That is the distinction that actually affects your bench work. A researcher choosing between a lyophilised vial and an oral capsule of the same compound is making a decision about preparation, handling and experimental design, not about the compound itself, and grouping the catalogue this way keeps that decision in the foreground.
There are six groupings in total. Single-compound vials make up the bulk of the range. Capsules cover compounds supplied in an oral presentation. Blends are two compounds pre-combined in a single vial. Stacks are sets of separate vials supplied together. There are two topical preparations, and a small accessories section covering reconstitution supplies.
A note on category totals
A number of products belong to more than one category on the site — a blend, for example, is also a vial, and appears under both. That means the individual category counts shown when browsing add up to more than the 87 distinct products in the catalogue. The tables on this page group each product once, under the presentation it is actually supplied in, so that the totals here reconcile.
Prices shown throughout this page are the USD list prices at the time of writing and are given as a guide. Prices can be displayed in GBP, USD, EUR or CAD, and the price that applies to your order is the one confirmed at checkout. Products listed with a range are available in more than one quantity, with the option chosen on the product page.
Single-Compound Research Vials
Vials are the core of the range and the format most research work starts from. Material is supplied lyophilised in laboratory-grade glass vials selected for the storage and containment of peptide research materials, and presentation can vary depending on the specific peptide and batch.
The advantage of a single-compound vial is control. You are working with one defined material against one set of batch documentation, and anything you observe can be attributed without having to account for a second compound in the same container. For study designs that compare conditions or establish a baseline, that isolation is usually worth more than the convenience of a pre-combined preparation.
Many vials are listed with a price range rather than a single figure. That indicates the compound is available in more than one quantity, with the specific option selected on the product page. Where a study is likely to run over several months, it is worth considering the larger presentation at the outset: drawing material from a single batch across a series of experiments removes a variable that is otherwise difficult to control for after the fact.
The range spans compounds studied across a wide spread of research areas — growth-factor and secretagogue research, peptides investigated in tissue and wound-repair studies, antimicrobial peptide research, neuropeptide and cognitive research, mitochondrial and metabolic research, and peptide bioregulator research. Within the neuropeptide research category, researchers can also review the specifications and available batch information for Semax Peptide. Descriptions of what individual compounds are studied for are published on their own product pages rather than here, while the services page explains how the wider research range is organised.
| Product | Listed price (USD) | New arrival |
|---|---|---|
| ACE-031 Peptide Vial | $116.79 | — |
| Adamax Peptide Vial | $54.65 | — |
| Adipotide Peptide Vial | $24.43 – $77.73 | — |
| AICAR Peptide Vial | $32.80 | — |
| AMPK Peptide Vial | $21.61 – $108.81 | — |
| AOD-9604 Peptide Vial | $22.20 – $77.94 | — |
| ARA-290 Peptide Vial | $10.09 | — |
| B7-33 Peptide Vial | $20.32 – $58.30 | — |
| BPC-157 Peptide Vial | $13.88 – $41.64 | — |
| Bronchogen Peptide Vial | $50.15 | — |
| Cartalax Peptide Vial | $50.27 | — |
| CJC-1295 DAC Peptide Vial | $29.31 – $107.18 | — |
| CJC-1295 No DAC Peptide Vial | $22.70 – $79.91 | — |
| DSIP Peptide Vial | $25.42 – $63.58 | — |
| Epithalon Peptide Vial | $16.75 – $113.55 | — |
| Follistatin 344 Peptide Vial | $107.43 | — |
| FOXO4-DRI Peptide Vial | $239.10 | — |
| GDF-8 Peptide Vial | $106.82 | — |
| GHK-Cu Peptide Vial | $18.75 – $84.38 | — |
| GHRP-2 Peptide Vial | $13.98 – $23.97 | — |
| GHRP-6 Peptide Vial | $15.19 – $24.03 | — |
| Gonadorelin Peptide Vial | $15.00 | — |
| Hexarelin Peptide Vial | $27.97 – $36.36 | — |
| HMG Peptide Vial | $46.63 | — |
| Humanin Peptide Vial | $55.52 | — |
| IGF-1 LR3 Peptide Vial | $24.09 – $96.19 | — |
| Ipamorelin Peptide Vial | $15.00 – $27.48 | — |
| Kisspeptin Peptide Vial | $24.15 – $46.63 | — |
| KPV Peptide Vial | $16.52 | — |
| L-Glutathione Peptide Vial | $21.20 | — |
| LL-37 Peptide Vial | $47.04 | — |
| Melanotan I Peptide Vial | $22.76 | — |
| Melanotan II Peptide Vial | $24.03 | — |
| MGF Peptide Vial | $21.25 | — |
| MOTS-c Peptide Vial | $36.08 | — |
| NAD+ Vial | $50.24 – $108.10 | — |
| Orexin A Peptide Vial | $119.16 | — |
| Oxytocin Peptide Vial | $10.21 | — |
| P-21 Peptide Vial | $30.11 – $61.79 | — |
| PEG-MGF Peptide Vial | $32.70 | — |
| Pinealon Peptide Vial | $58.64 | — |
| Protirelin TRH Peptide Vial | $38.36 | — |
| PT-141 Peptide Vial | $25.98 | — |
| PTD-DBM Peptide Vial | $22.88 | — |
| Selank Peptide Vial | $20.34 | — |
| Semax Peptide Vial | $19.37 – $60.43 | — |
| Sermorelin Peptide Vial | $21.61 – $33.99 | — |
| SNAP-8 Peptide Vial | $24.15 | — |
| SS-31 Peptide Vial | $136.27 – $348.23 | — |
| TB500 Peptide Vial | $16.59 – $63.15 | — |
| Tesamorelin Peptide Vial | $29.24 – $108.15 | — |
| Thymalin Peptide Vial | $35.60 – $190.76 | — |
| Thymosin Alpha-1 Peptide Vial | $68.13 | — |
| Triptorelin Peptide Vial | $19.07 | — |
| Vilon Peptide Vial | $45.92 | — |
| VIP Peptide Vial | $20.34 | — |
Oral-Format Research Capsules
Nine compounds in the catalogue are supplied in capsule form. A capsule is a different research material from the vial of the same compound, not simply a more convenient version of it, and the two are listed separately for that reason.
The practical difference is preparation. A lyophilised vial requires reconstitution before it can be used, which introduces a step that has to be carried out consistently if results are to be comparable across a series. A capsule arrives at a fixed quantity per unit and removes that step. For study designs where the reconstitution stage is a source of variability rather than a variable of interest, that can matter.
Capsules in the range include compounds supplied only in that format alongside compounds also available as vials, which allows a direct comparison of presentations within a single study where that is the question being asked. As with every other listing on this page, capsules are research materials and are not supplied for consumption of any kind.
| Product | Listed price (USD) | New arrival |
|---|---|---|
| 5-Amino-1MQ Capsules | $150.20 | Yes |
| BPC-157 Peptide Capsules | $55.22 | — |
| BPC-157 Thymosin Beta-4 Capsules | $180.15 | — |
| Epithalon Peptide Capsules | $88.42 | Yes |
| GHK-Cu Peptide Capsules | $76.71 | — |
| KPV Peptide Capsules | $61.12 | Yes |
| MK-677 Peptide Capsules | $52.33 | — |
| Tesofensine Peptide Capsules | $193.39 | — |
| Thymosin Beta 4 Peptide Capsules | $139.29 | — |
Pre-Combined Research Blends
A blend is two compounds combined in a single vial at a fixed ratio, prepared before dispatch rather than at the bench.
Blends exist because combining two materials accurately in a laboratory is a genuine source of error. Where a study calls for a fixed ratio and that ratio is not itself the variable under examination, a pre-combined vial removes a preparation step and with it a source of inconsistency between replicates. The trade-off is that the ratio is fixed, and if your design needs to vary the proportions, separate vials are the right choice.
Blends are also listed under vials on the site, because that is what they physically are. In the tables on this page they appear only here, to keep the totals reconcilable.
| Product | Listed price (USD) | New arrival |
|---|---|---|
| BPC-157 TB500 Blend Peptide Vial | $93.27 | — |
| GHRP-6 CJC-1295 DAC Blend Peptide Vial | $21.38 – $71.95 | — |
| GHRP-6 CJC-1295 No DAC Blend Peptide Vial | $21.38 – $71.71 | — |
| Ipamorelin CJC-1295 No DAC Blend Peptide Vial | $29.98 | — |
Multi-Vial Research Stacks
A stack is a set of separate vials supplied together. It is not a blend: the compounds arrive in their own containers, with their own documentation, and are never combined before they reach you.
That distinction is the whole point of the format. A stack gives you several related compounds in a single order, each still independently handled, so that a study can vary one while holding the others constant. Buying the same vials individually achieves the same thing; buying them as a stack simply does it in one transaction, usually at a lower combined price, and guarantees the set arrives together rather than across separate deliveries.
Stacks in the catalogue range from two-vial sets to three-vial combinations, and each product page states which compounds and quantities the set contains. Fifteen stacks are currently listed, and they represent a substantial share of the recent additions to the catalogue.
| Product | Listed price (USD) | New arrival |
|---|---|---|
| AOD-9604 BPC-157 Peptide Stack | $36.08 | — |
| BPC-157 GHK-Cu Thymosin Alpha-1 Peptide Stack | $100.76 | — |
| BPC-157 TB500 GHK-Cu Peptide Stack | $49.22 | — |
| BPC-157 VIP Peptide Stack | $34.22 | — |
| Epithalon DSIP Peptide Stack | $42.17 | — |
| GHK-Cu PTD-DBM Peptide Stack | $41.63 | Yes |
| GHK-Cu TB500 Peptide Stack | $35.34 | — |
| GHRP-2 CJC-1295 No DAC Peptide Stack | $36.68 | — |
| Kisspeptin PT-141 Peptide Stack | $50.13 | Yes |
| KPV BPC-157 Peptide Stack | $30.40 | Yes |
| LL-37 Thymosin Alpha-1 Peptide Stack | $115.17 | Yes |
| Oxytocin PT-141 Peptide Stack | $36.19 | Yes |
| Selank Semax Peptide Stack | $39.71 | Yes |
| Tesamorelin Ipamorelin Peptide Stack | $44.24 | Yes |
| Thymalin Epithalon Peptide Stack | $52.35 | — |
Topical Research Preparations
Two topical preparations are listed, both recent additions to the catalogue. They are supplied on exactly the same research-use basis as everything else on this page.
A topical preparation is a different research material again from a vial or a capsule of a related compound, and the two are not interchangeable. Where your work concerns a preparation applied to a surface rather than one prepared in solution, these are the listings to look at. The product pages set out what each preparation contains.
| Product | Listed price (USD) | New arrival |
|---|---|---|
| GHK Basic Topical | $29.92 | Yes |
| GHK-Cu Topical | $122.41 | Yes |
Laboratory Accessories
The accessories section covers the consumables that support work with lyophilised material rather than the research compounds themselves.
Bacteriostatic water is listed in more than one volume and is the item most often added to an order alongside vials, since lyophilised material has to be reconstituted before it can be worked with. Buying it in the same order as the compounds is straightforward and avoids a separate delivery for a consumable.
Accessories are supplied for laboratory research use in the same way as every other item in the catalogue.
| Product | Listed price (USD) |
|---|---|
| Bacteriostatic Water | $6.65 – $18.16 |
Choosing Between Presentations
Several compounds in the catalogue are listed in more than one presentation, and the right choice depends on the design of the study rather than on which option looks most convenient. The summary below sets out what each format actually changes about the work.
| Presentation | Supplied as | Preparation required | Best suited to |
|---|---|---|---|
| Vial | One compound, lyophilised, in a glass vial | Reconstitution before use | Work where a single defined material must be isolated against its own batch record |
| Capsule | One compound in an oral format at a fixed quantity per unit | None | Designs where the reconstitution step is a source of variability rather than a variable of interest |
| Blend | Two compounds pre-combined in one vial at a fixed ratio | Reconstitution before use | Work using a fixed ratio that is not itself under examination |
| Stack | Two or three compounds in separate vials, supplied together | Reconstitution of each vial | Work that varies one compound while holding the others constant |
| Topical | A prepared topical formulation | None | Work concerning a preparation applied to a surface |
Two practical points are worth adding to that table. The first concerns quantity: where a compound is listed with a price range, the larger presentations are generally better value per unit, but the more important consideration is batch continuity. Material drawn from one batch across a series of experiments removes a variable that cannot be reintroduced retrospectively, and that argument usually outweighs the per-unit saving.
The second concerns comparability between formats. A capsule and a vial of nominally the same compound are distinct research materials with their own batch documentation, and results obtained with one should not be assumed to transfer to the other without that being the question the study is asking. Where a design does intend to compare presentations directly, ordering both in the same transaction keeps the batch references close together and makes the comparison cleaner to document.
If you are unsure which presentation suits a planned study, the specifications and available documentation for each listing are the right basis for the decision, and the team can confirm what exists for a given product before you commit to an order.
New Arrivals and Promotions
Twelve products are currently flagged as new arrivals, marked in the tables above. They are weighted towards stacks and capsules, which reflects where the range has been expanding most recently.
Peptide Works also runs a promotions category. Promotional pricing changes, so rather than reproduce a figure here that may be out of date by the time you read it, the promotions listing on the site is the accurate reference. A first-order discount code is advertised on the site, and only one promotional voucher can be applied per order.
If you want to be told when batches and catalogue additions land, the site operates a newsletter covering batch and catalogue notifications. It is deliberately limited in scope: no dosing advice, no protocols and no discount spam.
Purity, Testing and Batch Documentation
Documentation is the part of a catalogue that actually determines whether it is useful. A product name tells you what something is supposed to be; a batch record tells you what arrived.
Analytical documentation is available for Peptide Works research materials where applicable. Depending on the product and the batch, this may include a Certificate of Analysis or HPLC analysis. Documentation is batch-specific, which is why enquiries about it need to name the compound, the presentation and, where you already hold the material, the batch reference on the vial.
How purity figures should be read
Peptide purity describes the proportion of detected peptide-related material attributed to the target peptide under a specified analytical method. HPLC assesses that by separating the components in a sample and measuring the resulting chromatographic peaks, with UV detection at wavelengths such as 214 nm commonly used because peptide bonds absorb strongly in that region.
A reported HPLC purity should be understood in the light of the analytical method and the rest of the batch records. On its own it does not give a full measure of every component that may be present in a sample. Treating a single percentage as a complete description of a material is the most common way of misreading a Certificate of Analysis, and a supplier that encouraged that reading would not be doing researchers any favours.
Where the material comes from
Peptide Works research peptides are manufactured by specialist facilities in Europe and the United States. Manufacturing and quality documentation relating to individual products or batches is available where applicable.
If the documentation available for a particular product is not clear from its listing, ask before ordering rather than after. The team can tell you what exists for a given batch, and that is a far better position from which to plan a study than discovering the answer once material is already on the bench.
Storage, Handling and What to Expect on Arrival
Storage requirements vary between compounds, and Peptide Works does not apply a single shelf-life estimate across the catalogue. Peptide stability depends on the individual compound, on storage conditions and on other factors, so the storage information published for the specific product and any available batch documentation is the reference point.
As a general matter, research peptides should be stored under the conditions specified for the individual product and protected from environmental factors that may affect stability, such as excessive heat, moisture and direct light. Where specific temperature requirements apply, those are stated in the relevant product information.
Materials are stored under controlled conditions at our storage facilities before dispatch, and storage requirements can differ between products in the same order.
Appearance of lyophilised material
This is worth setting out before your first delivery arrives, because it causes more unnecessary enquiries than anything else in the catalogue. Lyophilised peptide material varies in physical appearance between compounds and between batches. It may present as a compact cake, as fragmented material, or as loose powder. Movement and vibration during transport can cause it to shift, fragment or change appearance inside the vial.
A change in physical presentation does not, by itself, establish that the chemical identity or purity of the material has changed. Visual appearance alone should not be used to determine identity or purity; the analytical documentation for the relevant product or batch is what should be consulted. If the appearance of a delivery does concern you, photograph it and send the images with your order number rather than drawing a conclusion from the vial alone.
Handling
Appropriate laboratory handling procedures should be followed according to the material being studied and the requirements of the research environment. Products should only be handled and used by qualified and suitably trained laboratory research professionals.
Ordering, Payment and Delivery
Ordering follows a straightforward sequence: place the order, receive an order confirmation setting out the payment options, complete payment, and receive tracking details when the order is dispatched.
Payment
Peptide Works accepts bank transfer, card payment, Bitcoin and other cryptocurrency, and Zelle. Zelle is available to customers in the USA, and requires a USA address and USD currency at checkout for it to appear as an option, with the payment details provided once the order is placed. Prices can be displayed in GBP, USD, EUR or CAD.
Two details are worth knowing in advance. International payments can take two to three days to show in the account, and receipt of payment is not separately confirmed — the confirmation you receive is the dispatch email carrying your tracking details.
Dispatch and delivery
Orders are dispatched within two to four working days of payment being confirmed, and a tracking number and link are emailed at dispatch. Orders are sent from either the USA or the UK depending on destination, with most currently shipped from the UK. Carriers used include Parcel Force and DHL, with the carrier depending on the destination and the shipping option chosen.
| Service | Stated delivery time | Shipping Protection window |
|---|---|---|
| Standard shipping | 10–14 days | Tracking provided |
| Premium shipping | 3–5 days | Resend if not received within 21 days of dispatch |
| Tracked shipping | Tracking provided | Resend if not received within 28 days of dispatch |
Where Shipping Protection applies and a resent order is also not received, a refund is issued in accordance with the Shipping Protection terms. Shipping costs vary by destination and are confirmed at checkout.
Customs and your responsibilities
Approximately two to three per cent of orders are held at customs at some point. Clearance procedures differ by country and are outside any supplier's control. Checking the laws, regulations and import requirements that apply at your destination is your responsibility and needs to happen before you order; Peptide Works cannot confirm whether a particular research product may lawfully be imported into every destination.
Returns
Because of the nature of these products and the storage and handling conditions they require, products are not accepted back for resale. Researchers are responsible for confirming that the material ordered is appropriate for their intended research before ordering. Where an order arrives damaged or incorrect, contact the team and a replacement is arranged where applicable. Full guidance on raising an order issue is on the contact page.
Research-Use Conditions
Every product on this page is supplied on one basis, and it is not a formality buried in the small print. It determines who may buy, what the material may be used for, and what Peptide Works will and will not tell you about it.
Products are intended for research purposes only and not for human or animal consumption of any kind. They are not intended to be used as drugs, food additives or for other purposes, and they are not classed as medicines or drugs approved by the FDA or the MHRA to prevent, treat, diagnose, mitigate or cure any medical condition or disease. The listing of a product does not constitute a licence for its use.
Purchasers must be 21 years of age or over, and must be associated with a relevant body qualified to carry out laboratory research, including but not limited to a university, a laboratory or another research-based facility. Peptide Works reserves the right to carry out due diligence on customer eligibility and to refuse a sale where those conditions are not met.
Peptide Works does not provide guidance on the human or veterinary use, administration or application of its products. No dosing information, protocols or administration instructions are supplied for any item in this catalogue, and enquiries asking for them will not be answered with them.
Research use only
All products on this website are supplied for laboratory research purposes only. They are not intended for human or animal consumption or ingestion of any kind. Information, statements and products featured on this site are for research and educational purposes only and are not designed to diagnose, treat, cure, or prevent any condition.
The full conditions of supply are set out in the terms and conditions.
Questions About the Range
What is the difference between a blend and a stack?
A blend is two compounds combined in one vial at a fixed ratio. A stack is a set of separate vials supplied together, each kept independent so a study can vary one at a time.
Why do some products show a price range?
A range means the compound is available in more than one quantity. The specific option, and its price, is chosen on the product page.
Will my order come with a Certificate of Analysis?
Analytical documentation is available where applicable and may include a Certificate of Analysis or HPLC analysis, depending on the product and batch. Ask about a specific batch before ordering if it matters to your study.
Can I order the same batch again later?
Raise it as a bulk or repeat-supply enquiry rather than placing separate orders. Batch consistency is far easier to arrange before an order than afterwards.
A compound is not listed. Can you source it?
Ask. Availability can differ between presentations of the same compound, and an email will get you a straight answer on whether something is expected back in stock.
Do you advise on how to use these products?
No. Peptide Works does not provide guidance on human or veterinary use, administration or application. Questions about specifications, documentation and storage are welcome.
Enquiries about the catalogue
For stock checks, batch documentation, bulk requirements or anything else on this page, email info@peptide-works.com, naming the compound and presentation you are asking about. The contact page sets out what to include so an enquiry is resolved in one reply, and the about page explains how Peptide Works approaches sourcing and testing.