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Where to Buy Semaglutide in 2026: 16 Lab-Tested Sellers, From $1.80/mg With a Coupon Code

Where to buy Semaglutide: PepAssess lists Semaglutide at 35 vendors. As of November 12, 2026, the lowest price with a coupon code is $1.46/mg buying 2 vials at MsAmino (code PEPASSESS); the median across all sellers is $5.65/mg. Vendors are ranked by Evidence Score.

Also sold as: GLP-1 SM, GLP1-S, GLP-1SG (Pinnacle Peptide Labs), H-(S) (Hydro Research Peptides), RO-1S (Retaone Labs), RO-1SM (Retaone Labs), RIVN-1SG (Rivn Research), LCA-SM (Lost Coast Aminos), GLP-1 (SE) (Stack Research), RXL-TSM (RemedyX), PG-1SG (Peptide Giants), BRP-1S (Blue Ridge Peptides), GLP-S (1) (Global Aminos), TCB-1 SG (TCORE BIOTECH).

Prices and codes updated November 12, 2026 · re-checked every night

Learn more about Semaglutide from the published research: National Institutes of Health (DailyMed) · The New England Journal of Medicine (2021) · The New England Journal of Medicine (2016)

The compounds listed on this page are for research purposes only, not for human consumption.

Semaglutide reconstitution calculator →

Semaglutide coupon codes

Lowest Semaglutide price with a code
MsAmino20% off
$1.46/mg $3.65buying 2 vials20 mg vial $29.20 with the code
Shop
code tested at checkout October 16, 2026
Biggest Semaglutide discount
$3.68/mg $4.9010 mg vial $36.75 with the code
Shop

Prices with the code taken off · updated November 12, 2026 · re-checked every night

Every Semaglutide coupon code

42 Semaglutide sellers with a confirmed code — PepAssess's preferred vendor first, then highest Evidence Score.

Platinum LionPreferred93score20 mg vial $74.99 with code$5.00/mg$3.75/mg with code25% offShop
Rebirth LabsPreferred84score10 mg vial $53.99 with code$6.00/mg$5.40/mg with code10% offShop
Hydro Research Peptides100score10 mg vial $68 with code$8.50/mg$6.80/mg with code20% offShop
Lost Coast Aminos100score10 mg vial $18 with code$2/mg$1.80/mg with code70% below typical10% offShop
Bench Grade Peptides95score30 mg vial $119.70 with code$4.43/mg$3.99/mg with code10% offShop
Next Level Compounds95score30% offShop
Retaone Labs93score20 mg vial $37.05 with code$1.95/mg$1.85/mg with code5% offShop
Pinnacle Peptide Labs92score10 mg vial $76.49 with code$9.00/mg$7.65/mg with code15% offShop
PeakForce Labs92score35% offShop
Arctic Lab Supply90score10 mg vial $52.49 with code$7.00/mg$5.25/mg with code25% offShop
Peptide Giants89score5% offShop
Amino Research89score10 mg vial $31.99 with code$4.00/mg$3.20/mg with code20% offShop
Rivn Research88score20 mg vial $93.49 with code$5.50/mg$4.67/mg with code15% offShop
Blue Ridge Peptides88score10 mg vial $31.50 with code$3.50/mg$3.15/mg with code48% below typical10% offShop
Alpha Peptides87score10% offShop
Pivot Labs Global86score30 mg vial $187 with code$7.33/mg$6.23/mg with code15% offShop
Rejuven8 Peptides85score30 mg vial $84.79 with code$3.50/mg$2.98/mg with code7% below typical15% offShop
Everest Peptides85score20 mg vial $86.79 with code$5.42/mg$4.34/mg with code20% offShop
Disguised Alpha83score30 mg vial $89.99 with code$3.33/mg$3.00/mg with code11% below typical10% offShop
Echo Peptides83score20 mg vial $72.24 with code$4.25/mg$3.61/mg with code15% offShop
PX1 Research82score10% offShop
Modern Research Peptides82score40% offShop
Global Aminos82score10 mg vial $79.99 with code$10.00/mg$8.00/mg with code20% offShop
BioInfinity81score10% offShop
Stack Research80score10 mg vial $95.92 with code$11.99/mg$9.59/mg with code20% offShop
Palmetto Peptides79score10 mg vial $99 with code$11/mg$9.90/mg with code10% offShop
MsAmino78score20 mg vial $29.20 with code$3.65/mg$2.92/mg with code20% offShop
Prime Peptide Solutions78score10 mg vial $62.99 with code$7.00/mg$6.30/mg with code10% offShop
Ps Peptides77score10 mg vial $56.74 with code$6.50/mg$5.85/mg with code10% offShop
Great Northern Peptides76score10% offShop
V8 Peptides76score10% offShop
RemedyX75score10 mg vial $58.50 with code$6.50/mg$5.85/mg with code10% offShop
Platinum Biolabs73score10 mg vial $36.75 with code$4.90/mg$3.68/mg with code25% offShop
GenX Peptides68score5 mg vial $50.15 with code$11.80/mg$10.03/mg with code15% offShop
Value Research Labs64score30 mg vial $63.99 with code$2.67/mg$2.13/mg with code29% below typical20% offShop
VMAX Peptides63score10 mg vial $31.41 with code$3.49/mg$3.14/mg with code48% below typical10% offShop
Vitality Chems59score30 mg vial $315.94 with code$11.83/mg$10.53/mg with code11% offShop
Helion Research54score10 mg vial $46.39 with code$5.80/mg$4.64/mg with code14% below typical20% offShop
99PurityPeptides43score10% offShop
TCORE BIOTECH33score5 mg vial $34.55 with code$8.64/mg$6.91/mg with code20% offShop
Peptyds31score10% offShop
Helix Bio Chem16score30 mg vial $107.99 with code$4.00/mg$3.60/mg with code10% offShop

Lowest prices for every peptide →

Where to buy Semaglutide: the short answer

What is the lowest Semaglutide price with a coupon code?

As of November 12, 2026, the lowest Semaglutide price PepAssess found with a coupon code is at MsAmino: $1.46 per mg buying 2 vials with code PEPASSESS (20% off; $3.65 per mg before the code). Prices are re-checked every night. MsAmino coupon code

What is the best Semaglutide coupon code?

As of November 12, 2026, the biggest Semaglutide coupon code PepAssess has confirmed is PEPASSESS for 25% off at Platinum Biolabs, which brings it to $3.68 per mg. PepAssess lists each code with its discount and the seller's Evidence Score, based on lab reports confirmed with the testing labs. Platinum Biolabs coupon code

Where can I buy lab-tested Semaglutide?

As of November 12, 2026, PepAssess lists 35 online vendors selling Semaglutide. 16 of them publish a Semaglutide lab report that the testing lab confirmed on its own records, and 9 of those cover both purity (HPLC and mass spec) and toxicity (endotoxin or sterility). The highest-scoring vendors with a lab-confirmed Semaglutide report are Hydro Research Peptides (100/100), Bench Grade Peptides (95/100) and Pinnacle Peptide Labs (92/100). Compare all 35 Semaglutide vendors on PepAssess

What is the best Semaglutide vendor?

PepAssess ranks Semaglutide vendors by Evidence Score (0–100): what each vendor documents — lab reports confirmed by the labs, how often it tests, business transparency and buyer protection. As of November 12, 2026, the top-scoring Semaglutide vendors are Hydro Research Peptides (100/100), Lost Coast Aminos (100/100) and Bench Grade Peptides (95/100) — 2 of them with a lab-confirmed Semaglutide report.

What is the cheapest Semaglutide per mg?

The lowest Semaglutide price PepAssess found is $1.95/mg at Retaone Labs; the median across vendors is $5.65/mg (as of November 12, 2026). Among vendors with a lab-confirmed Semaglutide report, the lowest is $2.67/mg at Value Research Labs. Prices come from each vendor's own store and exclude shipping and discounts.

Which Semaglutide sellers have confirmed reports

21 of 35 Semaglutide sellers publish a lab report for it, and for 16 of them the lab confirmed the report in its own records. That comes to 49 confirmed reports, with the latest dated November 1, 2026. 9 sellers have confirmed reports for both purity and toxicity.

Semaglutide vial sizes and prices

Most Semaglutide listings are 10 mg vials: 26 listings at a median of $62.49. The 20 mg vial has 8 listings at a median of $84.50. Taking a seller's coupon code off, the lowest one-vial price is $1.80 per mg at Lost Coast Aminos, compared with a median of $5.65 per mg, or 68% below typical. Code names used on shop listings include GLP-1 SM, GLP1-S, GLP-1SG and H-(S).

How PepAssess checked Semaglutide

PepAssess opened each seller's Semaglutide report and searched the issuing lab's records for it. Reports are counted as confirmed only after that lookup. Store prices for Semaglutide were read on November 12, 2026.

Semaglutide cost per week

What one 10 mg vial of Semaglutide costs per week of research, at the lowest one-vial price with a coupon code: $18.00 at Lost Coast Aminos (code PEPASSESS, $1.80/mg), as of November 12, 2026.

One vial used overCost per week
2 weeks$9.00
4 weeks$4.50
8 weeks$2.25

Lab-confirmed Semaglutide reports

21 of 35 sellers publish a Semaglutide lab report. 16 have one the testing lab confirmed on its own records; 9 of those cover both purity (HPLC + mass-spec identity) and toxicity (endotoxin or sterility). Those covering both are listed first, then by Evidence Score.

Hydro Research PeptidesPurity ✓↗Toxicity ✓↗Jul 2026$8.50/mg20% off100scoreShop
Bench Grade PeptidesPurity ✓↗Toxicity ✓↗Jun 2026$4.43/mg10% off95scoreShop
Pinnacle Peptide LabsPurity ✓↗Toxicity ✓↗Jun 2026$9.00/mg15% off92scoreShop
Disguised AlphaPurity ✓↗Toxicity ✓↗Sep 2026$3.33/mg10% off83scoreShop
BioInfinityPurity ✓↗Toxicity ✓↗Mar 202610% off81scoreShop
MsAminoPurity ✓↗Toxicity ✓↗Aug 2026$3.65/mg20% off78scoreShop
Ps PeptidesPurity ✓↗Toxicity ✓↗$6.50/mg10% off77scoreShop
V8 PeptidesPurity ✓↗Toxicity ✓↗Oct 202610% off76scoreShop
Value Research LabsPurity ✓↗Toxicity ✓↗Jul 2026$2.67/mg20% off64scoreShop
PeakForce LabsPurity ✓↗Toxicity –Oct 202535% off92scoreShop
Arctic Lab SupplyPurity ✓↗Toxicity –Nov 2026$7.00/mg25% off90scoreShop
Echo PeptidesPurity –Toxicity –Apr 2026$4.25/mg15% off83scoreShop
Global AminosPurity ✓↗Toxicity –Jul 2026$10.00/mg20% off82scoreShop
Stack ResearchPurity ✓↗Toxicity –Jul 2026$11.99/mg20% off80scoreShop
Great Northern PeptidesPurity ✓↗Toxicity –Jun 202610% off76scoreShop
VMAX PeptidesPurity –Toxicity –Sep 2026$3.49/mg10% off63scoreShop
from $89.99$9.00/mg92scoreShop
from $55$8.50/mg100scoreShop
from $29$1.95/mg93scoreShop
82scoreShop
from $89.99$5.50/mg88scoreShop
from $114$4.43/mg95scoreShop
from $44.99$3.65/mg78scoreShop
from $20$2/mg100scoreShop
from $55$3.50/mg85scoreShop
from $59.99$3.33/mg83scoreShop
82scoreShop
from $69.90$11.99/mg80scoreShop
95scoreShop
81scoreShop
from $65$6.50/mg75scoreShop
from $69.99$7.00/mg78scoreShop
87scoreShop
89scoreShop
from $39.99$2.67/mg64scoreShop
from $69.99$7.00/mg90scoreShop
from $35$3.50/mg88scoreShop
from $64.99$4.25/mg83scoreShop
from $99.99$10.00/mg82scoreShop
76scoreShop
from $57.99$5.80/mg54scoreShop
from $64.99$6.50/mg77scoreShop
43scoreShop
from $43.19$8.64/mg33scoreShop
31scoreShop
from $54.99$4.00/mg16scoreShop
from $59$11.80/mg68scoreShop
76scoreShop
from $24.90$3.49/mg63scoreShop
from $89.99$11.83/mg59scoreShop
92scoreShop

Prices come from each vendor's own public store data and may exclude shipping, discounts or bulk pricing. Research-use products; not medical advice.

About Semaglutide

The compounds listed on this page are for research purposes only, not for human consumption. Not medical advice.

Related: Tirzepatide · Liraglutide · Retatrutide · Cagrilintide · Mazdutide · Survodutide

Semaglutide: more questions people ask

Which Semaglutide vendors have lab reports confirmed by the testing lab?

16 as of November 12, 2026. Those whose confirmed reports cover both purity and toxicity: Hydro Research Peptides, Bench Grade Peptides, Pinnacle Peptide Labs, Disguised Alpha, BioInfinity, MsAmino, Ps Peptides and V8 Peptides and 1 more. PepAssess matches each report to the issuing lab's own public record, not the vendor's copy.

How can I tell if a Semaglutide certificate of analysis (COA) is real?

Look the report up in the testing lab's own records — most labs that test peptides publish a lookup by report ID, QR code or lot number. PepAssess does this for every Semaglutide report it finds: as of November 12, 2026, 16 of the 21 sellers publishing a Semaglutide report had one the lab confirmed.

How much does a vial of Semaglutide cost?

As of November 12, 2026, a 10 mg vial of Semaglutide costs a median $62.49 across the 26 sellers PepAssess found with one in stock (lowest $26); a 20 mg vial, a median $84.50 across 8 sellers (lowest $35); a 5 mg vial, a median $69.90 across 5 sellers (lowest $39.99). Each seller's lowest in-stock price for that size counts once; prices come from each seller's own store and exclude shipping and discounts.

Can you buy Semaglutide as a pen or capsules?

Yes. As of November 12, 2026, 65 of the 35 Semaglutide sellers PepAssess lists sell a vial; 3 a pen or pre-filled form and 1 capsules or another oral form. Counts come from each store's own product names. A lab report covers the product and batch it names — check that it's for the form you're buying.

What other names is Semaglutide sold under?

Many shops sell Semaglutide under a code name. PepAssess files 14 of them under Semaglutide, from 21 sellers' own product names: GLP-1 SM (6 sellers), GLP1-S (4 sellers), GLP-1SG (Pinnacle Peptide Labs), H-(S) (Hydro Research Peptides), RO-1S (Retaone Labs), RO-1SM (Retaone Labs), RIVN-1SG (Rivn Research), LCA-SM (Lost Coast Aminos), GLP-1 (SE) (Stack Research), RXL-TSM (RemedyX), PG-1SG (Peptide Giants), BRP-1S (Blue Ridge Peptides) and 2 more. Each seller's prices, lab reports and coupon code are on this page.

How do I know if a Semaglutide seller is legit?

Check what the seller can show. As of November 12, 2026, PepAssess checks every Semaglutide seller for three things: a Semaglutide lab report that the testing lab confirms on its own records (16 of 35), card payments, which let you dispute a charge (29 of 35), and a published street address — not a mailbox or registered agent (14 of 35). Each seller's PepAssess profile shows which of these it has.

Are there Semaglutide coupon codes?

Yes. PepAssess lists coupon codes for 35 vendors selling Semaglutide: Hydro Research Peptides: PepAssess20 (20% off), Lost Coast Aminos: PEPASSESS (10% off), Bench Grade Peptides: PEPASSESS (10% off), Next Level Compounds: pepassess (30% off), Retaone Labs: PEPASSESS (5% off), Pinnacle Peptide Labs: PEPASSESS (15% off) and 29 more.