How are research peptides bought in Mexico?
Research peptides (research use only, RUO) are purchased in Mexico as laboratory reagents intended exclusively for scientific research. They are not approved by COFEPRIS for human or veterinary use, are not dispensed as medicines and, precisely for that reason, do not require a prescription: they are not sold for consumption. Buying at NeoPeptidos is direct, in Mexican pesos, with domestic shipping and batch analytical documentation.
The difference between a good and a bad purchase is not in the compound's name —that is identical in every catalog— but in what you can verify before paying: that there is an active batch, that purity is reported by HPLC for that batch and not as a generic catalog figure, that molecular identity is confirmed and that traceability is documented. All of that comes with every vial, with no separate charge for the certificate.
It is worth keeping an asymmetry of the Mexican market in mind: almost all suppliers buy from the same Asian manufacturers. What separates one from another is not the origin of the molecule, but the control they exercise over it afterwards: whether they analyze the batch or just forward the manufacturer's certificate, whether they keep the lyophilizate in stable conditions, and whether they let you trace which specific batch you received.
What does each order include?
- ≥99% purity verified by HPLC, reported by batch. The measured value for each batch is printed on its own COA.
- Certificate of Analysis (COA) issued by an independent analytical laboratory, downloadable and at no additional cost.
- Batch number and date of analysis for full traceability from the vial to the certificate.
- Bacteriostatic water included at no cost for reconstitution. We do not charge for it separately when you buy a vial.
- Discreet, trackable shipping in 24 to 72 business hours, with a tracking number.
- Free shipping on orders over $2,000 MXN.
- Explicit RUO labeling: «Not fit for human consumption — For scientific research only».
How to buy, step by step?
The whole process takes a few minutes and does not require creating an account beforehand or sending any documentation.
1. Choose the compound and the strength
Each compound is offered in several strengths. Before deciding, check the price-per-milligram table further down this page: a vial with a higher list price can turn out considerably cheaper per milligram.
2. Add to cart
Bacteriostatic water is included automatically with every vial. If your order exceeds $2,000 MXN, shipping becomes free and the cart shows it before you confirm.
3. Confirm the order
Complete your shipping details. You will receive an order number and the full breakdown —product, shipping, total— in writing.
4. Pay by SPEI bank transfer
We coordinate payment on WhatsApp: we send you the bank details and confirm receipt as soon as the transfer arrives. There are no hidden charges or currency conversion: the price you saw is the price you pay.
5. Receive your order with its documentation
We prepare and dispatch with a tracking number. The COA for the batch you received is available for download, and the batch number printed on the vial matches the one on the certificate.
How much do research peptides cost in Mexico?
The price depends on two variables: the compound and the strength. Latest-generation incretin agonists (Retatrutide, Tirzepatide) and peptides with complex synthesis cost more per milligram than simple tripeptides and tetrapeptides, whose synthesis is short and high-yield.
The second variable is the one most people overlook: the price per milligram goes down as the vial strength goes up. A 60 mg vial almost always costs less per milligram than a 10 mg vial of the same compound, because the cost of the vial, lyophilization, labeling, analysis and shipping is spread over more material.
That does not automatically make the largest strength the best buy. Once reconstituted, the vial has a limited shelf life in the refrigerator. If the planned protocol does not use up that vial within its stability window, the cost per milligram actually used ends up higher than that of a smaller strength. The practical rule: choose the largest strength you can use within that window, not the largest available.
All prices on this site are in Mexican pesos, include the COA and ship from inventory in Mexico: no importing on your own, no customs procedures and no risk of being held at the border.
How to compare suppliers without making a mistake?
The Mexican research peptide market grew quickly and supplier quality is uneven. Six verifiable criteria, in order of importance:
- COA by batch, not by catalog. A generic certificate that says «99%» with no batch number or date of analysis proves nothing about the vial you are going to receive. Ask for the COA of the specific batch.
- An identifiable issuing laboratory. The COA must say which laboratory performed the analysis. If the issuer is the manufacturer itself and there is no independent verification, the document is worth less.
- A readable chromatogram. A serious COA includes the HPLC chromatogram with a clear main peak, not just a percentage written in a table.
- Published price per milligram. Comparing list prices between vials of different sizes is comparing different things. A supplier that publishes the price per mg is making comparison easier for you, not hiding it.
- Real inventory. A huge catalog where half the items say «out of stock» is not a catalog: it is a shop window. Check availability before comparing prices.
- Explicit RUO labeling. A supplier that promises therapeutic effects or suggests doses is operating outside the research framework, and that is a sign of regulatory risk and poor judgment.
Be wary by default of prices far below the market. In peptides, aggressive savings almost always come from somewhere: lower purity, an underfilled vial or no real analysis.
Which peptides can I buy?
The catalog covers the main families the literature studies today. Each category links to its page, and each product to its sheet with strengths, price per milligram and scientific references.
Metabolic agents and incretin agonists
Semaglutide, Tirzepatide, Retatrutide, Cagrilintide. It is the most investigated family of the last decade and the one with the largest volume of publications on metabolic regulation and glucose homeostasis in preclinical models.
Tissue repair
BPC-157, TB-500, KPV and the GLOW and KLOW blends. Studied for their role in wound healing, extracellular matrix and the modulation of inflammatory processes.
Somatotropic axis (GH)
CJC-1295 (with and without DAC), Ipamorelin, Tesamorelin, GHRP-2 and GHRP-6. Secretagogues and GHRH analogs investigated for their effect on the pulsatile release of endogenous growth hormone.
Longevity and cellular function
Epitalon, NAD+, MOTS-c, GHK-Cu, Glutathione. Compounds associated in the literature with cellular senescence, mitochondrial function and aging biomarkers.
Nootropics and neuroactive compounds
Semax, Selank, DSIP, PE-22-28, Pinealon. One of the families with the most extensive clinical literature outside Western Europe and North America.
Inmunes e inflamatorios
Thymosin Alpha-1, LL-37, Ara-290, Thymalin. Investigated for their modulation of the immune response in in vitro and preclinical studies.
How are they stored and reconstituted?
The lyophilizate —the powder inside the unopened vial— is stable at room temperature for months and does not require a cold chain for transport. Once reconstituted with bacteriostatic water, the solution must be kept refrigerated at 2–8 °C, never in the freezer: freeze-thaw cycles degrade the peptide's structure.
The reconstitution volume is not fixed. More water gives a less concentrated solution and more measuring margin; less water concentrates it. What changes is the resulting concentration, not the total amount of compound in the vial.
Where do you ship and how long does it take?
We ship to all 32 states by express courier with a tracking number. The metropolitan areas of Mexico City, Guadalajara, Monterrey and Querétaro usually receive orders in 24 to 48 business hours; the rest of the country, in 48 to 72 business hours depending on the area.
The packaging is discreet: it does not indicate the contents on the outside or identify the product on the waybill. Shipping is free on orders over $2,000 MXN.
What does RUO mean and what regulatory framework applies in Mexico?
RUO means Research Use Only: material intended exclusively for in vitro scientific research or research in animal models. Peptides sold under this category are not classified as medicines, dietary supplements or controlled substances under Mexico's General Health Law, and therefore do not require sanitary registration or a medical prescription for sale as a reagent.
This is not a technicality to dodge regulation: it is the real category under which laboratory material operates worldwide, and it carries a concrete obligation. NeoPeptidos sells exclusively research-grade materials, labeled as not fit for human consumption. No product in this catalog is approved by COFEPRIS, the FDA or any other regulatory agency for human or veterinary, diagnostic, therapeutic or prophylactic use. It is the researcher's responsibility to comply with their institution's protocols and regulations.
Any supplier that promises you clinical results, suggests doses for people or presents these compounds as treatment is stepping outside that framework.
Best-selling peptides at NeoPeptidos
Ordered by units sold on neopeptidos.com. The list updates itself with every order.
Full catalogue by category
All 42 compounds in the catalogue, grouped by family. 27 are available right now; those marked as out of stock keep their product page with price, presentations and references so you can look them up and compare them.
Accessories and others (2)
Anti-aging (5)
General wellness (6)
Energy / Cellular (4)
GLP-1 / Metabolic (6)
Hormonal / GH (7)
Immune / Inflammation (3)
Nootropics (4)
Tissue repair (5)
Price per milligram for the whole catalog
The list price is no use for comparing vials of different sizes: a more expensive 20 mg vial can work out much cheaper per milligram than a 5 mg one. This table does the division for you using current catalogue prices and flags the most efficient presentation for each compound. It covers 25 compounds and 41 presentations with a published price.
One nuance worth keeping in mind before always going for the largest strength: once reconstituted, the vial has a limited shelf life. The cheapest presentation per milligram is only the best buy if you will use it within that period.
Prices in Mexican pesos, updated from the live catalogue. All include the batch Certificate of Analysis. Material for research use only (RUO).
Before you buy
Site tools and documentation worth reviewing before choosing a presentation.
Frequently asked questions
Shipping by city
We ship to all 32 states. Times and coverage by metropolitan area:
Page last updated: July 15, 2026. Content reviewed regularly by the NeoPeptidos team.