Best sources ranked · 2026

Best Tesamorelin Sources

87 US vendors carry Tesamorelin. Ordered below by the lab-rule score of each vendor’s certificate for Tesamorelin, then by the vendor’s published score; prices are per milligram. Stabilized synthetic analog of growth-hormone-releasing hormone (GHRH). Higher production cost than CJC-1295/Sermorelin reflects in pricing.

Vendors
87

Vendors

With COAs
70

With COAs

Best $/mg
$2.33

Best $/mg

Looking for the top picks? Best Tesamorelin vendors, ranked by PSR score →

New to Tesamorelin? What is Tesamorelin? Our plain-English, research-use-only guide: what it is and how to spot a verified source.

Every Tesamorelin source, by certificate

Ordered by the lab-rule score of each vendor's certificate for this product (out of 10), then by the vendor's published score, then alphabetically. How the lab rule scores a certificate. For the market-wide picture, see our 2026 study of peptide vendor testing.

Affiliate links: we may earn a commission if you buy. It never changes a score or rank.

9.5/103 base, +2 ILS Laboratories tier B+, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 sterility, +0.5 purity 99.8certificate

Vendor score 8.11/10Strong

Price per mg
$6.20
Best price
$62.00 / 10mg
9.5/103 base, +2 ILS Laboratories tier B+, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 sterility, +0.5 purity 99.71certificate

Vendor score 8.09/10Strong

Price per mg
$3.96
Best price
$79.20 / 20mg
9.5/103 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 sterility, +0.5 purity 99.93certificate

Vendor score 7.88/10Strong

Price per mg
$7.10
Best price
$71.00 / 10mg
9.5/103 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 sterility, +0.5 purity 99.88certificate

Vendor score 7.70/10Strong

Price per mg
$2.35
Best price
$47.00 / 20mg
9.5/103 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 sterility, +0.5 purity 99.93certificate

Vendor score 7.67/10Strong

Price per mg
$7.00
Best price
$70.00 / 10mg
9.5/103 base, +2 Kovera Labs tier A-, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 sterility, +0.5 purity 99.703certificate

Vendor score 7.55/10Strong

Price per mg
$10.00
Best price
$50.00 / 5mg
Shop Ascension Peptides → (opens in new tab)
9.0/103 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 sterility, 0 purity 99.22certificate

Vendor score 8.17/10Strong

Price per mg
$5.00
Best price
$99.99 / 10mg
Shop Zeptix Labs → (opens in new tab)
9.0/103 base, +2 ILS Laboratories tier B+, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 sterility, 0 purity 99.61certificate

Vendor score 8.08/10Strong

Price per mg
$7.00
Best price
$69.99 / 10mg
9.0/103 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 sterility, 0 purity 99.4certificate

Vendor score 7.94/10Strong

Price per mg
$8.00
Best price
$80.00 / 10mg
9.0/103 base, +2 Bioviridian tier A-, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 purity 99.72certificate

Vendor score 7.79/10Strong

Price per mg
$8.00
Best price
$79.99 / 10mg
Show 77 more carriers
9.0/103 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 purity 99.81certificate

Vendor score 7.53/10Strong

Price per mg
$5.50
Best price
$54.99 / 10mg
9.0/103 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 sterility, 0 purity 99.34certificate

Vendor score 7.48/10Strong

Price per mg
$5.95
Best price
$119.00 / 20mg
9.0/103 base, +2 Bioviridian tier A-, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 purity 99.8certificate

Vendor score 7.33/10Strong

Price per mg
$6.25
Best price
$200.00 / 32mg
9.0/103 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 sterility, 0 purity 99.49certificate

Vendor score 7.21/10Strong

Price per mg
$10.50
Best price
$105.00 / 10mg
9.0/103 base, +2 Accumark Labs tier B+, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 sterility, 0 purity 99.21certificate

Vendor score 7.12/10Strong

Price per mg
$6.46
Best price
$64.60 / 10mg
9.0/103 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 purity 99.84certificate

Vendor score 7.09/10Strong

Price per mg
$7.00
Best price
$69.99 / 10mg
Shop Arctic Lab Supply → (opens in new tab)
9.0/103 base, +2 Accumark Labs tier B+, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 sterility, 0 purity 99.36certificate

Vendor score 6.67/10Fair

Price per mg
$9.00
Best price
$89.99 / 10mg
9.0/103 base, +2 Bioviridian tier A-, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 purity 99.77certificate

Vendor score 5.95/10Fair

Price per mg
$7.40
Best price
$74.00 / 10mg
Shop NextGen Peps → (opens in new tab)
8.5/103 base, +2 Bioviridian tier A-, +1.5 key, +1.5 key confirmed, +0.5 purity 99.88certificate

Vendor score 8.01/10Strong

Price per mg
$11.00
Best price
$110.00 / 10mg
Shop DAAVY Research → (opens in new tab)
8.5/103 base, +2 Ethos Analytics Laboratory tier B+, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, 0 purity 99certificate

Vendor score 7.88/10Strong

Price per mg
$7.30
Best price
$73.00 / 10mg
8.5/103 base, +2 Kovera Labs tier A-, +1.5 key, +1.5 key confirmed, +0.5 purity 99.888certificate

Vendor score 7.73/10Strong

Price per mg
$7.50
Best price
$150.00 / 20mg
Shop LabFirst Peptides → (opens in new tab)
8.5/103 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, +0.5 purity 99.99certificate

Vendor score 7.71/10Strong

Price per mg
$7.00
Best price
$70.00 / 10mg
Shop Honest Peptide → (opens in new tab)
8.5/103 base, +2 Horizon Analytical tier A-, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, 0 purity 99.44certificate

Vendor score 7.43/10Strong

Price per mg
$7.90
Best price
$79.00 / 10mg
8.5/103 base, +2 Bioviridian tier A-, +1.5 key, +1.5 key confirmed, +0.5 purity 99.9certificate

Vendor score 7.30/10Strong

Price per mg
$7.40
Best price
$74.00 / 10mg
8.5/103 base, +2 Kovera Labs tier A-, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, 0 purity 99.608certificate

Vendor score 7.29/10Strong

Price per mg
$7.10
Best price
$141.99 / 20mg
8.5/103 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, +0.5 purity 99.95certificate

Vendor score 7.15/10Strong

Price per mg
$6.00
Best price
$119.95 / 20mg
8.5/103 base, +2 ILS Laboratories tier B+, +1.5 key, +1.5 key confirmed, +0.5 purity 99.89certificate

Vendor score 7.14/10Strong

Price per mg
$5.50
Best price
$109.99 / 20mg
8.5/103 base, +2 MZ Biolabs tier A, +1.5 key, +1.5 key confirmed, +0.5 purity 99.94certificate

Vendor score 6.88/10Fair

Price per mg
$8.50
Best price
$42.49 / 5mg
8.5/103 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, +0.5 purity 99.81certificate

Vendor score 6.65/10Fair

Price per mg
$4.65
Best price
$93.00 / 20mg
8.5/103 base, +2 Horizon Analytical tier A-, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, 0 purity 99.39certificate

Vendor score 6.60/10Fair

Price per mg
$9.00
Best price
$89.99 / 10mg
Shop Pinnacle Peptide Labs → (opens in new tab)
8.5/103 base, +2 Horizon Analytical tier A-, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, 0 purity 99.61certificate

Vendor score 6.55/10Fair

Price per mg
$11.40
Best price
$114.00 / 10mg
8.5/103 base, +2 Vanguard Laboratory tier B+, +1.5 key, +1.5 key confirmed, +0.5 purity 99.8certificate

Vendor score 6.54/10Fair

Price per mg
$7.90
Best price
$79.00 / 10mg
8.5/103 base, +2 ILS Laboratories tier B+, +1.5 key, +1.5 key confirmed, +0.5 purity 99.82certificate

Vendor score 6.26/10Fair

Price per mg
$5.50
Best price
$109.99 / 20mg
8.5/103 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, +0.5 purity 99.83certificate

Vendor score 6.03/10Fair

Price per mg
$7.50
Best price
$75.00 / 10mg
8.5/103 base, +2 MZ Biolabs tier A, +1.5 key, +1.5 key confirmed, +0.5 purity 99.97certificate

Vendor score 5.79/10Fair

Price per mg
$7.30
Best price
$73.00 / 10mg
8.5/103 base, +2 ILS Laboratories tier B+, +1.5 key, +1.5 key confirmed, +0.5 purity 99.78certificate

Vendor score 5.78/10Fair

Price per mg
$8.42
Best price
$84.15 / 10mg
Shop AminoVault → (opens in new tab)
8.5/103 base, +2 Janoshik Analytical tier B+, +1.5 key, +1.5 key confirmed, +0.5 purity 99.931certificate

Vendor score 5.62/10Fair

Price per mg
$6.00
Best price
$60.00 / 10mg
8.5/103 base, +2 Bioviridian tier A-, +1.5 key, +1.5 key confirmed, +0.5 purity 99.82certificate

Vendor score 5.62/10Fair

Price per mg
$8.50
Best price
$84.99 / 10mg
8.5/103 base, +2 MZ Biolabs tier A, +1.5 key, +1.5 key confirmed, +0.5 purity 99.95certificate

Vendor score 5.59/10Fair

Price per mg
$13.50
Best price
$135.00 / 10mg
8.5/103 base, +2 ACS Laboratory tier A, +1.5 key, +1.5 key confirmed, +0.5 purity 99.81certificate

Vendor score 5.40/10Weak

Price per mg
$7.79
Best price
$77.95 / 10mg
8.5/103 base, +2 Janoshik Analytical tier B+, +1.5 key, +1.5 key confirmed, +0.5 purity 99.715certificate

Vendor score 4.52/10Weak

Price per mg
$13.00
Best price
$130.00 / 10mg
8.5/103 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, +0.5 purity 99.78certificate

Vendor score 4.39/10Weak

Price per mg
$7.50
Best price
$75.00 / 10mg
8.5/103 base, +2 MZ Biolabs tier A, +1.5 key, +1.5 key confirmed, +0.5 purity 99.97certificate

Vendor score 3.32/10Poor

Price per mg
$31.80
Best price
$159.00 / 5mg
8.5/103 base, +2 ILS Laboratories tier B+, +1.5 key, +1.5 key confirmed, +0.5 purity 99.82certificate

Vendor score 3.28/10Poor

Price per mg
$6.25
Best price
$125.00 / 20mg
8.0/103 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, 0 purity 99.5certificate

Vendor score 7.90/10Strong

Price per mg
$7.00
Best price
$35.00 / 5mg
Shop Luv Aminos → (opens in new tab)
8.0/103 base, +2 BioRegen tier A, +1.5 key, +1.5 key confirmed, 0 purity 99.68certificate

Vendor score 7.78/10Strong

Price per mg
$9.00
Best price
$90.00 / 10mg
8.0/103 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, 0 purity 99.45certificate

Vendor score 7.29/10Strong

Price per mg
$6.90
Best price
$69.00 / 10mg
8.0/103 base, +2 Janoshik Analytical tier B+, +1.5 key, +1.5 key confirmed, no purity figurecertificate

Vendor score 6.93/10Fair

Price per mg
$10.30
Best price
$103.00 / 10mg
8.0/103 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, 0 purity 99.03certificate

Vendor score 6.89/10Fair

Price per mg
$4.75
Best price
$95.00 / 20mg
Shop NovaForge Labs → (opens in new tab)
8.0/103 base, +2 ILS Laboratories tier B+, +1.5 key, +1.5 key confirmed, 0 purity 99.3certificate

Vendor score 6.17/10Fair

Price per mg
$5.00
Best price
$99.99 / 20mg
8.0/103 base, +2 ILS Laboratories tier B+, +1.5 key, +1.5 key confirmed, 0 purity 99.34certificate

Vendor score 6.14/10Fair

Price per mg
$5.25
Best price
$104.99 / 20mg
8.0/103 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, 0 purity 99.162certificate

Vendor score 6.14/10Fair

Price per mg
$7.75
Best price
$155.00 / 20mg
8.0/103 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, 0 purity 99.15certificate

Vendor score 5.39/10Weak

Price per mg
—
Best price
—
Shop Swiss Chems → (opens in new tab)
8.0/103 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, 0 purity 99.16certificate

Vendor score 5.01/10Weak

Price per mg
$9.50
Best price
$94.99 / 10mg
8.0/103 base, +2 Janoshik Analytical tier B+, +1.5 key, +1.5 key confirmed, 0 purity 99.507certificate

Vendor score 4.68/10Weak

Price per mg
$9.50
Best price
$94.99 / 10mg
7.5/103 base, +2 Janoshik Analytical tier B+, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 sterility, -1.5 purity 97.56certificate

Vendor score 7.80/10Strong

Price per mg
$6.80
Best price
$68.00 / 10mg
Shop Ameano Peptides → (opens in new tab)
7.5/103 base, +2 MDx BioAnalytical Laboratory tier A+, +1.5 key, +0 key not found at the lab, +0.5 endotoxin, +0 accreditation (tested 2026-05-04, before 2026-06-09), +0.5 purity 99.74certificate

Vendor score 7.24/10Strong

Price per mg
$15.00
Best price
$149.97 / 10mg
Shop BioLongevity Labs → (opens in new tab)
7.5/103 base, +2 ILS Laboratories tier B+, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 sterility, -1.5 purity 98.04certificate

Vendor score 5.61/10Fair

Price per mg
$7.00
Best price
$69.99 / 10mg
7.5/103 base, +2 Vanguard Laboratory tier B+, +1.5 key, +0.5 endotoxin, +0.5 purity 99.8certificate

Vendor score 4.36/10Weak

Price per mg
$9.00
Best price
$89.99 / 10mg
7.0/103 base, +2 Janoshik Analytical tier B+, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, -1.5 purity 98.788certificate

Vendor score 7.67/10Strong

Price per mg
$5.95
Best price
$119.00 / 20mg
7.0/103 base, +2 Vanguard Laboratory tier B+, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, -1.5 purity 98.51certificate

Vendor score 6.08/10Fair

Price per mg
$6.45
Best price
$129.00 / 20mg
Shop Hello Stacks → (opens in new tab)
6.5/103 base, +2 Vanguard Laboratory tier B+, +1.5 key, +1.5 key confirmed, -1.5 purity 98.76certificate

Vendor score 7.10/10Strong

Price per mg
$3.85
Best price
$76.99 / 20mg
6.5/103 base, +2 Ethos Analytics Laboratory tier B+, +1.5 key, no purity figurecertificate

Vendor score 6.75/10Fair

Price per mg
$5.00
Best price
$99.99 / 20mg
Shop Modified Aminos → (opens in new tab)
6.5/103 base, +2 ILS Laboratories tier B+, +1.5 key, +1.5 key confirmed, -1.5 purity 97.1certificate

Vendor score 6.34/10Fair

Price per mg
$8.50
Best price
$84.95 / 10mg
Shop JD BioWorks → (opens in new tab)
6.5/103 base, +2 Kovera Labs tier A-, +1.5 key, +1.5 key confirmed, -1.5 purity 98.844certificate

Vendor score 3.72/10Poor

Price per mg
$11.00
Best price
$109.99 / 10mg
5.5/103 base, +2 Krause Analytical LLC tier B-, +0.5 purity 99.9certificate

Vendor score 6.87/10Fair

Price per mg
$6.95
Best price
$138.99 / 20mg
5.5/103 base, +2 Accurate Test Lab tier B-, +0.5 endotoxin, 0 purity 99.33certificate

Vendor score 4.59/10Weak

Price per mg
$14.90
Best price
$149.00 / 10mg
4.5/103 base, +0 Analytical Formulations tier C, +1.5 key, 0 purity 99.3certificate

Vendor score 4.54/10Weak

Price per mg
$14.25
Best price
$285.00 / 20mg
2.0/10SteriGenix Analytical tier D: independence not established = 2.0 flatcertificate

Vendor score 4.80/10Weak

Price per mg
$5.83
Best price
$175.00 / 30mg
2.0/10North American Diagnostics tier D: independence not established = 2.0 flatcertificate

Vendor score 3.95/10Poor

Price per mg
$7.00
Best price
$139.99 / 20mg
2.0/10Proof Point Analytical tier D: independence not established = 2.0 flatcertificate

Vendor score 3.92/10Poor

Price per mg
$6.50
Best price
$64.99 / 10mg
2.0/10Mistral Diagnostics tier D: independence not established = 2.0 flatcertificate

Vendor score 3.90/10Poor

Price per mg
$7.50
Best price
$75.00 / 10mg
2.0/10Amino Metrics tier D: independence not established = 2.0 flatcertificate

Vendor score 3.63/10Poor

Price per mg
$6.60
Best price
$65.99 / 10mg
2.0/10self-issued by the vendor = 2.0 flatcertificate

Vendor score 3.26/10Poor

Price per mg
$9.50
Best price
$95.00 / 10mg
2.0/10Titreon Analytical tier D: independence not established = 2.0 flatcertificate

Vendor score 2.38/10Poor

Price per mg
$8.50
Best price
$170.00 / 20mg
0.0/10no certificatecertificate

Vendor score 6.86/10Fair

NoneNo third-party COA was publicly available at audit time
Price per mg
$9.50
Best price
$94.99 / 10mg
0.0/10no certificatecertificate

Vendor score 5.85/10Fair

NoneNo third-party COA was publicly available at audit time
Price per mg
$5.75
Best price
$115.00 / 20mg
0.0/10no certificatecertificate

Vendor score 3.74/10Poor

NoneNo third-party COA was publicly available at audit time
Price per mg
$4.00
Best price
$40.00 / 10mg
0.0/10no certificatecertificate

Vendor score 3.56/10Poor

NoneNo third-party COA was publicly available at audit time
Price per mg
$9.97
Best price
$49.85 / 5mg
0.0/10no certificatecertificate

Vendor score 3.21/10Poor

NoneNo third-party COA was publicly available at audit time
Price per mg
$10.75
Best price
$215.00 / 20mg
0.0/10no certificatecertificate

Vendor score 3.06/10Poor

NoneNo third-party COA was publicly available at audit time
Price per mg
$10.00
Best price
$50.00 / 5mg
0.0/10no certificatecertificate

Vendor score 2.75/10Poor

NoneNo third-party COA was publicly available at audit time
Price per mg
$7.98
Best price
$159.56 / 20mg
0.0/10posted copy differs from the lab's copy = 0certificate

Vendor score 2.49/10Poor

Price per mg
$9.99
Best price
$99.90 / 10mg
0.0/10no certificatecertificate

Vendor score 2.46/10Poor

NoneNo third-party COA was publicly available at audit time
Price per mg
$7.00
Best price
$700.00 / 10 x 10mg pack
0.0/10no certificatecertificate

Vendor score 2.23/10Poor

NoneNo third-party COA was publicly available at audit time
Price per mg
$24.75
Best price
$123.75 / 5mg
0.0/10no certificatecertificate

Vendor score 2.13/10Poor

NoneNo third-party COA was publicly available at audit time
Price per mg
$2.33
Best price
$466.00 / 10 x 20mg pack
0.0/10no certificatecertificate

Vendor score 1.63/10Poor

NoneNo third-party COA was publicly available at audit time
Price per mg
$11.25
Best price
$112.49 / 10mg

“Shop” links may be affiliate links (rel="sponsored"); we may earn a commission. Affiliate status never affects any rating, rank, or gate. Disclosure.

Affiliate partners carrying Tesamorelin

Affiliate links: we may earn a commission if you buy. It never changes a score or rank.

Highest-placed partner

Peptix USA9.5/10 certificate

The highest-placed affiliate partner in the table above for Tesamorelin: certificate 9.5/10, vendor score 8.11/10.

Largest partner reader code

The largest reader discount among our affiliate partners carrying Tesamorelin: 50% off with code PSR50.

Shop Ascension Peptides → (opens in new tab)
Ascension Peptides discount code →

Tesamorelin: Frequently Asked Questions

Who has the best Tesamorelin?

In our 2026 audit, Peptix USA is listed first for Tesamorelin: its certificate for Tesamorelin scores 9.5/10 on our lab rule, and its published vendor score is 8.11/10. The full ordered table is on this page.

What is the cheapest Tesamorelin per mg?

The lowest recorded price per milligram for Tesamorelin in our audit is the "Best $/mg" figure at the top of this page, and every carrier's price per mg is in the table. Cheapest is not the same as best: the table is ordered by certificate and vendor score, not by price.

How do you rate Tesamorelin vendors?

Ordered by the lab-rule score of each vendor's certificate for this product (out of 10), then by the vendor's published score, then alphabetically. The certificate score is the same lab rule that builds each vendor's lab sub-score, applied to that vendor's certificate for Tesamorelin; the vendor score is the published overall score. Price per mg is shown but does not change the order. See our methodology for the lab rule.

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