For research use only. Not for human consumption. Not medical advice — consult a licensed clinician.

GLP-1 / Metabolic

Semaglutide

Also known as: Semaglutide (GLP-1 agonist)

Semaglutide is a GLP-1 receptor agonist used for type 2 diabetes management and chronic weight management. It mimics the incretin hormone GLP-1 to regulate appetite and glucose metabolism.

Where to buy · live market data

Who's worth your money for Semaglutide

Every current seller, ranked by independent evidence — Merit Score, latest COA purity, and live $/mg (size-normalized). Prices refresh daily. Rankings are never paid.

Top Merit pick

Highest Merit Score (99) of 15 scored sellers

$4.88/mg

$976 · 200mg · 99.9% purity

Best value

Lowest $/mg among scored sellers

$1.00/mg

$10.00 · 10mg

no COAs yet

Most tested

12 independent COAs on file

$6.50/mg

$130 · 20mg · 99.3% purity

Average price

$6.77/mg

Sellers

25

45-day trend

+3.2%

21 of 25 sellers have a current price· 4 stale hidden· 2 unverified hidden

Prices observed from public storefronts (last 24h), normalized to $/mg. "Evidence" is Merit's 0–100 Merit Score, derived only from observable verification evidence (methodology on /about); "Purity" is the latest independent COA. Some buy links are affiliate links — Merit may earn a commission at no extra cost to you, and where a vendor offers one, the code shown gets you a discount at their checkout. Affiliate status never affects price data, ranking, or the Merit Score (full policy on /disclosure). Research use only.

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Compound reference

About Semaglutide

CAS

910463-68-2

Molecular formula

C187H291N45O59

Typical dose range

0.25–2.4 mg (250–2400 mcg) subcutaneous once weekly; typically titrated from 0.25 mg/week, increasing every 4 weeks

Half-life

~7 days

Independent evidence

COAs for Semaglutide

195 third-party tests across 30 vendors. Each card links to the full report.

All 195 COAs for Semaglutide →
Measured purity 99.0%–100.0% across 120 COAs
Measured purity over time
Aggregated · 3rd-party listing
99.95 %
Aug 2026
Freedom Diagnostics Moderate

For

Semaglutide

by VoriLabs· batch SEMA_2608-A

Aggregated · 3rd-party listing
99.84 %
Aug 2026
ILS Labs Strong

For

Semaglutide

by Velora Biolabs· batch VBL-SM20-1

Aggregated · 3rd-party listing
99.85 %
Aug 2026
Freedom Diagnostics Moderate

For

Semaglutide

by Peptide Plugs· batch 189-02-DK

Aggregated · 3rd-party listing
99.90 %
Jul 2026
Krause Analytical

For

Semaglutide

by VoriLabs· batch VoriLabs SEMA-2607-C

Aggregated · 3rd-party listing
99.90 %
Jul 2026
Krause Analytical

For

Semaglutide

by VoriLabs· batch VoriLabs SEMA-2607-B

✓ Vendor-published
99.74 %
Jul 2026
Janoshik Analytical Limited

For

Semaglutide

by EZ Peptides· batch EZP-1P1007112026-04

COA on file
Aggregated · 3rd-party listing
99.77 %
Jul 2026
Freedom Diagnostics Moderate

For

Semaglutide

by Synthesis Peptides· batch 1G10826

Aggregated · 3rd-party listing
99.76 %
Jul 2026
ILS Labs Strong

For

Semaglutide

by Hydro Research Peptides· batch HR-2026-7341

Aggregated · 3rd-party listing
99.95 %
Jul 2026
Janoshik Analytical Limited

For

Semaglutide

by Longeva· batch B-2026-SEMA-5-001

✓ Vendor-published
99.94 %
Jun 2026
TrustPointe Analytics Moderate

For

Semaglutide

by Peptide Partners· batch SPL-4149

COA on file
Aggregated · 3rd-party listing
99.07 %
Jun 2026
ILS Labs Strong

For

Semaglutide

by Peptide Plugs· batch 125-01-SM

Aggregated · 3rd-party listing
99.90 %
Jun 2026
Prime Analytical Laboratories, LLC

For

Semaglutide

by Soma Peptides· batch SEV052657

Aggregated · 3rd-party listing
99.80 %
May 2026
Vanguard Laboratory Strong

For

Semaglutide

by Certified Peptides· batch 260518SG53

Aggregated · 3rd-party listing
99.75 %
May 2026
Janoshik Analytical Limited

For

Semaglutide

by EZ Peptides· batch EZP-1P1005102026-03

✓ Vendor-published
99.63 %
May 2026
Janoshik Analytical Limited

For

Semaglutide

by EZ Peptides· batch EZP-1P1005102026-03

COA on file
Aggregated · 3rd-party listing
99.91 %
May 2026
Freedom Diagnostics Moderate

For

Semaglutide

by Blank Peptides· batch GS10-052026-4

Aggregated · 3rd-party listing
99.23 %
May 2026
Horizon Analytical

For

Semaglutide

by Pepsgpt· batch P-2885342-P

Aggregated · 3rd-party listing
99.86 %
Apr 2026
Janoshik Analytical Limited · HPLC

For

Semaglutide

by Prime Peptides· batch 3022026SM

Aggregated · 3rd-party listing
99.75 %
Apr 2026
Janoshik Analytical Limited · HPLC

For

Semaglutide

by Prime Peptides· batch 3142026SM

Aggregated · 3rd-party listing
99.17 %
Apr 2026
Janoshik Analytical Limited · HPLC

For

Semaglutide

by Prime Peptides· batch 2242026SM

✓ Vendor-published
99.96 %
Apr 2026
Kovera Labs

For

ION-1S

by Ion Peptide· batch ION1S20-04172026

COA on file
Aggregated · 3rd-party listing
99.70 %
Apr 2026
BTLabs Moderate

For

Semaglutide

by Vertex Labs· batch SM0000038

Aggregated · 3rd-party listing
99.00 %
Apr 2026
Ethos Analytics Strong · HPLC

For

Semaglutide

by OROS Research· batch OR-LPGLPS10-426-B3

Aggregated · 3rd-party listing
99.68 %
Apr 2026
Janoshik Analytical Limited · HPLC

For

Semaglutide

by Prime Peptides· batch 3272026SM

Research depth

23 citations indexed for Semaglutide

All research on Semaglutide →

Study · 2026

EASL-EASD-EASO Guidance for the Use of Resmetirom and Semaglutide as MASH-Targeted Therapy

Adults with metabolic dysfunction-associated steatotic liver disease (MASLD) and steatohepatitis (MASH) are at risk for cardiometabolic complications and major adverse liver-related outcomes (MALO), including cirrhosis, cancer, and liver transplantation.

Study · 2026

Oral Semaglutide and the Kidney: Promise, Limitations, and the Road Ahead

cohort · 2026

Weight-Loss Outcomes After Sleeve Gastrectomy Versus Tirzepatide in a Minority Cohort With Severe Obesity: Results From a Propensity Score Matched Cohort

While GLP-1 and GIP receptor agonists like semaglutide and tirzepatide have revolutionized pharmacologic obesity treatment, metabolic and bariatric surgery (MBS) continues to demonstrate superior weight loss and cost-effectiveness.

Study · 2026

Safety outcomes of semaglutide by chronic kidney disease severity in the FLOW trial

Introduction People with type 2 diabetes (T2D) and chronic kidney disease (CKD) often experience medication intolerance and side effects that worsen with lower estimated glomerular filtration rate (eGFR). This prespecified secondary analysis assessed the safety of semaglutide by baseline eGFR.

animal · 2026

Mechanistic benchmarking of SNAC, DDM, and LLC reveals enhancer-dependent pathways for intestinal semaglutide delivery

The oral delivery of peptide therapeutics remains constrained by poor intestinal permeability and the challenge of enhancing epithelial transport without compromising mucosal integrity.

Study · 2026

The Conventional Cost-Effectiveness and Distributional Cost-Effectiveness of Semaglutide for Obesity Treatment

Objective This study aimed to evaluate the conventional and distributional cost-effectiveness of semaglutide, laparoscopic sleeve gastrectomy (LSG), and a "do nothing" option in Black and White racial subgroups.