Peptide therapy

Semaglutide.the GLP-1 standard, with two decades of trial data

★★★★★ 4.9· based on 1,247 verified reviews ·read research logs
$
Vial size 2mg
Pack size 1 vial
Quantity
HPLC verified 99.9%+ purity
ISO 17025 independent lab
Cold-chain overnight ships
Ships today if ordered by 3pm ET
ClassSingle-target GLP-1 agonistSingle-target GLP-1 agonist.
Mol. weight4113.58 DaConfirmed by mass spec on every batch shipped.
Half-life7 daysOnce-weekly subcutaneous dosing target.
Element MD batchSM-2603-CHPLC 99.87% · MS pass · endotoxin <0.05 EU/mg.
Semaglutide
Added 1× Semaglutide View cart →
— Mechanism / 01

One receptor. Two decades of receipts.

Semaglutide put GLP-1 on the map. Two decades of trial data, the first FDA-approved chronic weight-management peptide, and the most studied compound in the catalog. Our role is simple — ship the same molecule with a COA that proves it.

GLP-1 receptor

Activation slows gastric emptying, suppresses appetite at the hypothalamic level, and improves insulin response — the three-way mechanism behind every GLP-1 outcome paper.

Effect · Primary

Albumin binding

A C-18 fatty acid side chain binds serum albumin, extending half-life to ~7 days. The engineering choice that made once-weekly GLP-1 dosing practical.

Effect · Secondary

Trial pedigree

STEP, SUSTAIN and SELECT generated the metabolic and cardiovascular data that made GLP-1 mainstream. Every newer agonist is benchmarked against semaglutide.

Effect · System
— Reference protocol / 02

Trial-aligned titration ladder.

This is the published Phase 2 escalation pattern, not a dosing recommendation. Adjust under qualified guidance based on tolerability and research goals. Open the dosing calculator below to convert mg to units.

Weeks 1–40.25 mg

Onboarding dose. Establishes tolerance before titrating up.

Weeks 5–80.5 mg

First step. Some patients stabilize here if 1.0+ becomes intolerable.

Weeks 9–121.0 mg

The most-cited maintenance dose for sub-clinical protocols.

Weeks 13+1.7–2.4 mg

Trial-aligned maintenance. Higher doses correspond to deeper trial-published outcomes.

— What ships / 03

The complete research kit.

Every Element MD box ships with everything needed to reconstitute and run the protocol. We don't fragment the workflow into upsells — the kit is the kit.

Kit photo · drop replacement1Vial · 8mg lyophilized2BAC water · 3mL3Insulin syringes · ×104COA card
  • 01 Semaglutide vial5mg lyophilized peptide, sealed under inert gas×1
  • 02 Bacteriostatic water0.9% benzyl alcohol, sterile, USP-grade3 mL
  • 03 Insulin syringes30G ½", 0.5mL, individually sealed×10
  • 04 Alcohol prep pads70% isopropyl, single-use×20
  • 05 Sharps container1L, FDA-cleared, mail-back disposal label×1
  • 06 Printed COA cardBatch-specific, signed by Janoshik Analytical×1
— Verified field reports / 04

Patients logging Semaglutide data.

Every review below is tied to a verified order. We pull starting weight, current week, and dose so you can see the protocol behind each result, not just a star rating.

4.9
★★★★★
1,247 verified reviews
★5
88%
★4
9%
★3
2%
★2
1%
★1
0%
Steady results · 412Mild side effects · 287Easy to reconstitute · 244Fast shipping · 198COA matches · 156
D
Daniel R.
✓ Verified· Weight Loss · 6 orders
★★★★★
Hit the curve I expected — and the GI was livable.

Titrated 0.25 → 1.0 over 12 weeks. Down 11.4% with no protocol stops. The Element MD COA matched what I expected from the molecule. No compounding-pharmacy variability.

— Research log
CompoundSemaglutide
Batch testedSM-2603-C
Cross-test purity99.83% (vs. 99.87%)
ReconstitutionClean · no haze
Apr 10, 2026 · Phoenix, AZ
M
Maya K.
✓ Verified· Weight Loss · 3 orders
★★★★★
Switched from a compounded source. Night and day.

Same dose, completely different consistency. The cap was tight, the powder uniform, the lab report on top.

— Research log
CompoundSemaglutide
Batch testedSM-2603-C
Cross-test purity99.83% (vs. 99.87%)
ReconstitutionClean · no haze
Apr 15, 2026 · Brooklyn, NY
P
Pavel L.
✓ Verified· Weight Loss · 2 orders
★★★★★
Independent assay matched within margin.

Cross-tested at my own contract lab. 99.85% vs 99.87% on the supplied COA. Genuine quality.

— Research log
CompoundSemaglutide
Batch testedSM-2603-C
Cross-test purity99.83% (vs. 99.87%)
ReconstitutionClean · no haze
Apr 20, 2026 · Portland, OR
A
Amelia S.
✓ Verified· Verified · Switched protocols
★★★★★
Switched from a compounded source. Half the cost, twice the documentation.

Element MD is the one whose batch consistency I have not had to question. Reorder is automated and the COA on top of every box matches the database.

— Research log
CompoundSemaglutide
Batch testedSM-2603-C
Cross-test purity99.83% (vs. 99.87%)
ReconstitutionClean · no haze
May 02, 2026 · Austin, TX
Independent · ISO 17025 lab

This vial's certificate, not a generic spec sheet.

Every batch ships with a signed COA from Janoshik Analytical. Open the original PDF, view the chromatogram, or look up any batch you've ever ordered.

Purity (HPLC)
99.87%
Mass spec
4113.58 Da · pass
Endotoxin
<0.05 EU/mg
Sterility
USP <71> pass

Certificate of AnalysisJanoshik Analytical · Lab Report


SampleSM-2603-C
Date2026-04-21
CompoundSemaglutide
Mass4113.58 Da
MethodHPLC-UV
Solvent0.1% TFA / ACN
Purity (220nm)99.87%
Release tests
HPLC purity ≥ 99.0%Pass
Mass spec matchPass
Endotoxin (LAL)Pass
Sterility USP <71>Pass
Released
2026-04-21
★ Verified ★
— Common questions / 05

Before you order. Before you reconstitute.

Sema vs Element MD vs Tirz — when do I run sema?
Run sema when you want the most-studied molecule, the cleanest tolerability, and weekly dosing predictability. Tirz and Element MD have steeper curves; sema has the deepest paper trail.
Standard titration?
STEP-aligned: 0.25 → 0.5 → 1.0 → 1.7 → 2.4mg, four weeks per step.
How long does reconstituted sema last?
30 days refrigerated at 2–8°C with bacteriostatic water.
Independent COA?
Every batch passes ISO-17025 testing. Latest report linked above.
What's your cold-chain process?
Lyophilized peptide is stable at room temperature for short transit, but we ship every order with insulated mailers and gel packs sized to the destination. Average arrival temperature on cross-country routes is 4.7°C.
How do I cancel a subscription?
From your account dashboard, in two clicks. No retention call, no email loop. Pause, skip, or cancel any time before the next ship date.