If you are looking to buy Tesamorelin peptide for research, the most important factors to compare are supplier transparency, lot-specific COAs, identity and purity testing, available quantities, pricing, and product documentation. Five suppliers list it online today: Kylo Peptides, Cernum Biosciences, American Peptides, NextGen Peptides, and AminoVault.

Kylo Peptides leads our comparison on documentation, with nine test lines on a lot-numbered certificate, the widest panel we found. NextGen Peptides lists the lowest price per milligram, and Cernum Biosciences is the only one listing a 5 mg vial.

 

We held all five to the same research-buyer criteria and checked every listing on the same day. Availability, prices, and test documents change, so confirm each one before you order.

Quick Comparison: Where To Buy Tesamorelin Peptide?

All five suppliers list Tesamorelin for sale as a lyophilized research vial, publish a certificate of analysis (COA), and label the product for laboratory use. The gaps show up in vial size, price, and what each certificate lets a buyer verify. Cernum showed both sizes out of stock when we checked.

 

Supplier	Tesamorelin	COA	Independent Testing	Common Quantity	Price	Research-Use Labeling
Kylo Peptides	In stock	Public COA library	Optiq Health Labs	10 mg	$99.95	✓
Cernum Biosciences	Out of stock	Testing page (images)	Verify lab name	5 mg / 10 mg	$69.99 / $94.99	✓
American Peptides	Listed	Page and library	Bioviridian	10 mg	$120.00	✓
NextGen Peptides	Listed	Public COA library	Bioviridian, Bioregen	10 mg	$74.00 (list $92.00)	✓
AminoVault	Listed	Lab results page	ILS Laboratories	10 mg	$89.25 (list $105.00)	✓

 

Prices are the single-vial rates shown for the standard grade, before member discounts.

Tesamorelin Buying Landscape in 2026

Tesamorelin shows up across research-peptide catalogs because it is a well-characterized 44-amino-acid GHRH analog with a published reference mass. A known mass makes it simple for a lab to test and for a buyer to check. Documentation is what separates one listing from the next.

 

A research vial is a different product from a regulated medicine. Tesamorelin in prescription form is sold as Egrifta, a medicine made under manufacturing controls. Research suppliers sit outside those controls and set their own testing rules, which is why one certificate can list nine tests and another only two.

What Should You Look for When You Buy Tesamorelin Peptide?

Seven checks cover almost everything a careful buyer needs before ordering research-grade Tesamorelin: identity, purity, the identity method, the lot-specific COA, the lab, the vial size, and the handling information. We call it the 7-Point Tesamorelin Buyer Check, and all five suppliers went through it.

1. Compound Identity

The listing should name Tesamorelin, its form, its molecular weight (about 5,135.9 g/mol), and a lot number. Identity is separate from purity, because a very pure vial can still contain the wrong peptide.

2. Purity Testing

A Tesamorelin purity figure should include its method (usually HPLC), the lab, the test date, and the lot number. A "99% purity" line remains a marketing statement until a report supports it. The FDA's Q2(R2) guidance sets out how analytical procedures are validated.

3. LC-MS or Other Identity Testing

A purity test needs an identity confirmation beside it. On an LC-MS report, the measured mass should sit close to Tesamorelin's 5,135.9 g/mol. No single test proves overall quality.

4. Lot-Specific COA

A generic COA describes the product in general. A lot-specific COA names the batch so that you can match the lot number, date, results, lab, and method to your vial.

5. Independent Laboratory Testing

Look for the lab name, report number, method, and date. ISO/IEC 17025 accreditation is a plus when stated. A non-accredited report can still be useful when it is transparent and traceable.

6. Quantity and Vial Size

Tesamorelin is commonly sold in 5 mg and 10 mg vials. Compare the cost per milligram: price ÷ total peptide quantity = approximate cost per mg.

7. Storage and Product Handling Information

Check that the supplier states the format, storage and shipping conditions, packaging, and research-use labeling.

5 Places to Buy Tesamorelin Peptide Online

Kylo Peptides, Cernum Biosciences, American Peptides, NextGen Peptides, and AminoVault each list a Tesamorelin vial alongside a published certificate or test report. We compared availability, product information, testing documents, COA access, quantity, price, catalog, shipping, and research-use labeling for all five.

1. Kylo Peptides:

Residual-solvent screen on Tesamorelin. Kylo Peptides is our top pick for buying Tesamorelin with verifiable documentation. Its most recent published certificate reports nine test lines, including a residual-solvent screen that we did not find on the other certificates we could open. Kylo states that the certificate's lot ID is printed on the vial.

Tesamorelin Product Availability

Kylo lists Tesamorelin 10mg as a lyophilized vial at $99.95, in stock when we checked. The product page gives the molecular weight (5,135.86 g/mol) and the 44-amino-acid length. A paid lifetime membership lowers the price to $49.98.

Testing and COA Documentation

Kylo's public COA library lists Tesamorelin 10 mg under lot SD-260727-1, tested by Optiq Health Labs and dated August 10, 2026.

 

• Purity: 99.2% HPLC purity (RP-HPLC)
• Identity: confirmed by LC-MS
• Also reported: potency, pH, water activity, endotoxin, yeast and mold, residual solvents (GC-MS), and heavy metals.
• Traceability: a lab-issued certificate ID and QR code

 

The library holds reports from four independent labs across the catalog: Janoshik, Freedom Diagnostics, Vanguard Laboratory, and Optiq Health Labs.

What Makes Kylo Worth Comparing?

Kylo publishes the full nine-line lab document, so buyers can read every result the lab issued. It ships within the United States and backs any mismatch between vial and certificate with a replacement or refund within 30 days of delivery.

Kylo at a Glance

Factor	Kylo Peptides
Tesamorelin	10 mg, in stock on October 6, 2026
COA	Public library, lot SD-260727-1
Testing	Optiq Health Labs, independent
Purity	99.2% (RP-HPLC)
Identity	LC-MS
Research use	Yes
Price	$99.95

 

Read the Tesamorelin certificate in Kylo's COA library.

2. Cernum Biosciences:

Tesamorelin in two vial sizes. Cernum Biosciences is the Tesamorelin supplier to consider when an order requires a size choice, since it is the only one of the five listing both 5 mg and 10 mg vials.

Tesamorelin Product Options

The Tesamorelin 5mg vial is listed at $69.99 and the 10 mg vial at $94.99. Both showed as out of stock when we checked, so confirm availability first.

Cernum's Testing and COA Approach

Cernum's testing page posts two documents for Tesamorelin: a third-party testing report and a certificate of analysis. Both are image files we couldn't read at our check, so the lab, method, and lot details are unconfirmed. The page lists the same lot number for every product, so ask which batch your vial comes from.

What to Compare With Other Vendors

Cernum's 10 mg vial comes to $9.50 per mg, inside the $7.40 to $12.00 range of the other 10 mg listings. The 5 mg vial comes to $14.00.

Cernum at a Glance

Factor	Cernum Biosciences
Tesamorelin	5 mg and 10 mg, out of stock at check
COA	Report and COA images
Testing	Third-party, verified lab
Purity	>99% stated
Identity	Verify
Research use	Yes
Price	$69.99 / $94.99

 

See Cernum's testing page before you order.

3. American Peptides:

Worth considering: Tesamorelin inside a 51-product COA library. American Peptides suits researchers sourcing Tesamorelin alongside other compounds, because one public COA library covers them all. Its vial costs the most per milligram of the standard 10 mg listings, at $12.00.

Product Availability and Pricing

The 10 mg vial is listed at $120.00, with volume pricing from three units. A 20 mg option appears on the page and was sold out when we checked.

COA and Testing

The 10 mg certificate comes from Bioviridian, carries lot TESA10-0803, and is dated August 17, 2026. It reports 99.79% purity by RP-HPLC and identity by LC-MS/MS, with endotoxin and heavy-metal lines. The report includes a web verification code.

Broader Research Catalog

Its COA library spans 51 products and marks older lots as superseded. Sales are final, with 72 hours to report damage.

Who Might Consider American Peptides?

American Peptides may be worth comparing for buyers who want to evaluate Tesamorelin alongside a broader research-peptide catalog. A multi-compound order can also clear its $300 free-shipping threshold. Visit its Tesamorelin page to confirm the current lot.

4. NextGen Peptides: 

An option for two-lab Tesamorelin certificates. NextGen Peptides posts reports from Bioviridian and Bioregen and lists its 10 mg vial at $74.00. We opened both dated certificates in its COA library, and neither shows a lot number, so the documents alone cannot tie a report to a specific vial.

Tesamorelin Product Details

NextGen lists one size, Tesamorelin 10mg, marked down from a $92.00 list price. Bulk tiers start at five vials, and delivery is by USPS to US addresses only.

Independent Testing and COAs

The newer report is from Bioviridian, dated September 25, 2026, with 99.77% purity by RP-HPLC, LC-MS/MS identity, and an endotoxin line. An earlier Bioregen report from February 11, 2026 shows 99.74%.

Catalog and Ordering Experience

The catalog runs to about 80 products, and the COA library table shows the lab and test date for each entry. Sales are final after a 24-hour cancellation window. Get the current COA from NextGen's library before you buy.

5. AminoVault: 

Worth a look for an access-coded Tesamorelin certificate. AminoVault suits Tesamorelin buyers who want to confirm a certificate directly with the lab, since its ILS Laboratories report includes an access code and a verification link. The same report confirms identity by HPLC retention time, with no mass-spec line.

Product Information

AminoVault lists Tesamorelin 10 mg in two grades. The US Sourced grade shows $89.25 against a $105.00 list price, and the US cGMP grade shows $160.65.

Testing and COA Transparency

The certificate names lot AV-6162026-T, with analysis dated June 24, 2026. It reports 99.89% purity by HPLC, net peptide content, and a fentanyl screen. The date is older than the current reports from Kylo, American Peptides, and NextGen, so ask whether a newer lot report exists.

Broader Catalog

The catalog is grouped by research area, and the lab results page links the Tesamorelin certificate. All sales are final. Open the ILS report there to read it yourself.

Tesamorelin Suppliers Compared: Which Factors Actually Matter?

Testing transparency is the widest gap between these Tesamorelin suppliers. Four of the five name the lab on a certificate we could read, and three of those confirm identity by mass spectrometry. Cells marked "Verify" are points we could not confirm from the published documents.

Testing Transparency

Supplier	COA	HPLC	LC-MS	Independent Lab	Lot Traceability
Kylo	✓	✓	✓	✓ Optiq Health Labs	✓
Cernum	✓	Verify	Verify	Verify	Verify
American Peptides	✓	✓	✓	✓ Bioviridian	✓
NextGen	✓	✓	✓	✓ Bioviridian, Bioregen	Lot marked NA
AminoVault	✓	✓	Not on this report	✓ ILS Laboratories	✓

 

Bioviridian reports include a web code you can enter on the lab's COA search page.

Tesamorelin Price Comparison: What Are You Actually Paying For?

Tesamorelin price per vial runs from $69.99 to $120.00 across the standard-grade listings, and price per milligram runs from $7.40 to $14.00. The per-milligram figure is the fair one to compare, because vial sizes differ. Testing depth also varies by price.

Compare Price Per Vial

Supplier	Size	Listed Price	Price per mg
Kylo Peptides	10 mg	$99.95	$10.00
Cernum Biosciences	5 mg	$69.99	$14.00
Cernum Biosciences	10 mg	$94.99	$9.50
American Peptides	10 mg	$120.00	$12.00
NextGen Peptides	10 mg	$74.00	$7.40
AminoVault (US Sourced)	10 mg	$89.25	$8.93

Compare Price Per Milligram

Price per mg = product price ÷ total peptide quantity. A 10 mg vial at $99.95 works out to $99.95 ÷ 10, or about $10.00 per mg.

Don't Compare Price Without Comparing Documentation

Two 10 mg vials can differ in COA availability, testing depth, lab documentation, lot traceability, and shipping. American Peptides, for example, has the highest 10 mg per-mg price and keeps superseded lots visible in its certificate library.

How to Verify a Tesamorelin COA Before Buying

Seven quick checks test a Tesamorelin COA, and none require lab training. Work through them in order with the certificate open next to the product page. If a step fails, ask the supplier before paying.

 

1. Match the product name. The COA should say Tesamorelin and the vial size.
2. Match the lot number. The batch on the report should match the product being sold.
3. Check the test date. A recent date suggests the report covers the stock on sale.
4. Review the analytical method. Look for a named method, such as RP-HPLC or LC-MS.
5. Check the laboratory. Identify who ran the test. Labs such as ILS Laboratories and Optiq Health Labs printed a verification code on the reports we opened.
6. Review the results. Read past the headline purity figure to identify the content.
7. Check that the document is complete. Look for lab details, a report number, a sample ID, the date, the results, and a signature where applicable.

HPLC vs. LC-MS: What Should Tesamorelin Buyers Know?

HPLC and LC-MS answer two different questions about a Tesamorelin vial. HPLC shows how much of the sample is the main peptide, and LC-MS checks the molecular mass to confirm the peptide identity. Kylo, American Peptides, and NextGen show both on their Tesamorelin reports.

 

Test	What It Can Help Evaluate
HPLC	Purity and the related analytical profile
LC-MS	Molecular mass and identity confirmation
Other analytical tests	Further quality attributes, depending on the assay

 

Mass spectrometry is widely used to determine a peptide's mass and confirm its sequence. The clearest report states what was tested, how it was tested, and which lot was tested.

5mg vs. 10mg Tesamorelin: Which Format Should Research Buyers Compare?

Tesamorelin 5mg and 10mg vials hold the same compound, listed under one PubChem record, so the comparison comes down to quantity, unit cost, and paperwork. Of the five suppliers, only Cernum lists a 5 mg vial, and the other four sell 10 mg.

5mg Format

A 5 mg vial holds less material and can suit smaller research requirements. Check the price per mg, which was $14.00 at Cernum, and confirm the same testing documents cover this size.

10mg Format

A 10 mg vial holds twice the quantity, and at Cernum it costs less per milligram. Across the standard-grade listings, it ran from $7.40 to $12.00 per mg.

The Important Question Isn't "Which Is Better?"

Ask which quantity fits the project and still comes with a lot-matched certificate at a fair cost per mg.

How Shipping, Packaging and Storage Information Affect Your Purchase

Posted terms on a research-grade Tesamorelin order cover delivery speed, shipping cost, and refund eligibility. Three of the five sell Tesamorelin as a final sale, so read the refund line before paying. 

 

Supplier	Stated terms
Kylo Peptides	Free over $150, tracked, 2 to 4 business days, US only
Cernum Biosciences	Verify on site
American Peptides	Dispatch in 24 to 48 business hours, free over $300, final sale
NextGen Peptides	USPS, free at $150 or more, no refunds or returns
AminoVault	Free standard shipping on eligible orders, 1 to 2 business days processing, final sale

 

Kylo, Cernum, and American Peptides state −20 °C storage for the lyophilized vial on their product pages.

Red Flags to Watch for When Buying Tesamorelin Online

A Tesamorelin listing can show seven red flags, each one visible on the product page or the certificate before any money changes hands. 

 

• Only a purity percentage. "99% pure" with no report behind it.
• Generic COA. No lot number on the certificate.
• No testing laboratory. A result with no named lab. Accreditation bodies such as A2LA list the labs they accredit.
• Inconsistent product information. Pages that disagree on vial size, purity, or product details.
• Medical marketing claims. Treatment or human-use claims from a research supplier.
• No clear research-use disclaimer. The intended use should be stated plainly.
• Unclear company information. No identifiable business, contact details, or policies.

A Simple Tesamorelin Supplier Scorecard

Kylo scores 94 out of 100 on this Tesamorelin supplier scorecard, ahead of American Peptides at 88, NextGen at 81, AminoVault at 80, and Cernum at 50. We scored eight criteria from 0 to 5, then weighted them based on what we could verify. An unreadable document or an empty field costs points.

 

Criteria	Weight	Kylo	Cernum	American Peptides	NextGen	AminoVault
COA transparency	20%	20	12	20	20	16
Independent testing	20%	20	8	16	16	16
Identity/purity documentation	15%	15	6	15	15	9
Lot traceability	15%	15	6	15	3	15
Product information	10%	10	6	10	8	8
Price/value	10%	6	8	4	10	8
Shipping/order transparency	5%	4	1	3	4	4
Catalog transparency	5%	4	3	5	5	4
Total	100%	94	50	88	81	80

 

Kylo's COA library earned full marks on the four documentation rows, helped by its nine-line panel. Cernum's score reflects documents we could not read. Confirming the lab name would raise it.

Which Tesamorelin Supplier Is the Right Fit?

Kylo Peptides fits documentation-led Tesamorelin orders, Cernum fits a need for a 5 mg vial, and NextGen fits the tightest budget. American Peptides fits multi-compound orders, and AminoVault fits buyers who verify with the lab. Both Cernum sizes were out of stock when we checked.

If Testing Documentation Is Your Priority

Kylo Peptides had the widest test panel on its Tesamorelin certificate, with a lot number and LC-MS identity.

If You Want Multiple Vial Options

Cernum Biosciences lists 5 mg and 10 mg. American Peptides shows a 20 mg option that was sold out when we checked.

If Price per Milligram Matters

NextGen Peptides had the lowest standard rate at $7.40 per mg, followed by AminoVault at $8.93.

If COA Accessibility Matters

Kylo, American Peptides, and NextGen run public COA libraries. AminoVault uses a lab results page, and Cernum posts images on its testing page.

If You Want a Broader Research Catalog

American Peptides (51 products in its COA library) and NextGen (about 80 catalog items) each document a wide catalog in one library.

Research-Use Considerations Before Ordering Tesamorelin

These suppliers sell every Tesamorelin vial for laboratory research only. The product sits outside the approval pathway for medicines and comes with no guidance for human or veterinary use. A few checks before ordering keep a lab in line with its own requirements.

 

• Confirm the research-use-only label on the product page and the vial.
• Check your laboratory or institution's purchasing requirements.
• Follow the laws and regulations that apply where you work.
• Handle the material under your lab's standard procedures.
• File the supplier documentation, order record, and lot number.
• Verify the product against its certificate on arrival.

Where Each Tesamorelin Supplier Fits

Each of the five Tesamorelin suppliers has one clear strength in the listings and certificates we opened on the day we checked. 

 

• Kylo Peptides: the widest test panel, on a lot-numbered certificate.
• Cernum Biosciences: the only smaller vial size of the five.
• American Peptides: one COA library across its catalog.
• NextGen Peptides: two-lab reports at the lowest listed price per mg.
• AminoVault: an ILS report you can verify by access code.

FAQs About Buying Tesamorelin Peptide

Can I compare Tesamorelin suppliers using price alone?

No. Price says nothing about what was tested. Two listings can sit a few dollars apart while one publishes a lot-numbered report with mass-spec identity and the other shows only a purity line.

Why might two Tesamorelin products with the same vial size have different prices?

Extra assays, a second lab, cGMP sourcing, cold-pack shipping, and return policies can all add cost. AminoVault, for example, lists the same size vial in two grades at two prices.

How recent should a Tesamorelin COA be?

Recent enough to belong to the lot on sale. A report tied to the current batch is worth more than a newer-looking report that names no lot.

Can I request a COA before placing an order?

Yes. These suppliers publish certificates openly. Where a document is missing or unreadable, email support and ask for the report tied to the lot that will ship.

Does a public COA library mean every product has the same testing?

No. A library shows which reports exist, and the tests can vary by product and by lab. Open the certificate for the exact product and size you plan to order.

What information should I retain after purchasing a research compound?

Keep the order confirmation, the vial's lot number, a saved copy of the certificate, a capture of the product page on the order date, and delivery and storage records.

Final Thoughts: Where to Buy Tesamorelin Peptide

The best place to buy Tesamorelin peptide matches your research requirements for documentation, testing, quantity, price, and sourcing transparency. For documentation-led buyers, that points to Kylo Peptides, whose Tesamorelin certificate was the most complete of those we opened.

 

• Kylo: nine test lines on one lot-numbered certificate
• Cernum: the only smaller vial size
• American Peptides: a catalog-wide COA library
• NextGen: the lowest listed price per mg
• AminoVault: an access-coded ILS report

 

Before ordering, verify current product availability, price, the lot-specific COA, and the testing documentation. Visit Kylo Peptides to read the Tesamorelin certificate for yourself.

Disclaimers

• Affiliate disclosure: this page contains affiliate links, and Kylo Peptides is a commercial partner.
• Research use only: Tesamorelin from these suppliers is sold for laboratory research. It is not approved for human or veterinary use, and nothing here is medical advice.

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The views, opinions, and recommendations expressed in this article are solely those of the author and are provided for informational and editorial purposes only. They do not constitute professional advice and should not be relied upon as such. OutSFL makes no representations or warranties regarding the accuracy, completeness, or applicability of the content and assumes no liability for any actions taken based on it. The views expressed do not necessarily reflect those of OutSFL.