How much does Semaglutide cost?

Across 20 vetted research vendors Stacked tracks, Semaglutide runs $1.95/mg to $45.00/mg. The lowest in-stock total right now is $24.95 from Reta One Labs. Prices are pulled from each vendor's public catalog and refresh daily.

Where can I buy Semaglutide?

Semaglutide is listed by 20 research-peptide vendors in the Stacked directory, including Reta One Labs, Modern Research Peptides, Puratek Peptides. Compare $/mg, total price, stock, and each vendor's Stacked Score in the table above, then click through to the vendor. Stacked does not sell peptides.

Who has the cheapest Semaglutide?

The current lowest price is $1.95/mg from Reta One Labs (Stacked Score 66/100). Cheapest isn't automatically best — weigh each vendor's testing and Stacked Score, not price alone, before ordering.

Is Semaglutide legal to buy?

Semaglutide and other research peptides are sold strictly for laboratory and research use — they are not approved by the FDA for human consumption. Legal status and import rules vary by country and are the buyer's responsibility. For research purposes only; not medical advice.

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Semaglutide · Price Detail

20 vendors46 SKUs$/mg $1.95–$45.00Verified 5h agoFull profile →

GLP-1Current listings · 46 SKUs

Side-by-side vendor pricing for Semaglutide. Cheapest in-stock total: $24.95. Sort by $/mg, total cost, or Stacked Score — then click through to view the listing on the vendor's site.

In stock only

Sort by

Best $/mg Lowest total Highest trust score

Best $/mg
Reta One Labs
⚠ as of 5d ago
66
RO-1S 20mg (Semaglutide)
Size20 mg
Total$39.00
$/mg$1.95
In stock
View
Modern Research Peptides
⚠ as of 5d ago
73
GLP1-S 30mg (Semaglutide)
Size30 mg
Total$69.99
$/mg$2.33
In stock
View
Reta One Labs
verified 5h ago
66
RO-1S 10mg (Semaglutide)
Size10 mg
Total$29.00
$/mg$2.90
In stock
View
Puratek Peptides
verified 5h ago
66
PUR-1S (Semaglutide) 10 mg
Size10 mg
Total$34.95
$/mg$3.50
In stock
View
EZ Peptides
verified 5h ago
74
EZP-1P Kit (Semaglutide, 10 x 10mg = 100mg)
Kit
Size100 mg
Total$368.00
$/mg$3.68
In stock
View
Pure RX Peptides
⚠ as of 5d ago
60
Sema 30mg (Semaglutide)
Size30 mg
Total$115.00
$/mg$3.83
In stock
View
Modern Research Peptides
⚠ as of 5d ago
73
GLP1-S 10mg (Semaglutide)
Size10 mg
Total$39.99
$/mg$4.00
In stock
View
True Peptide Labs
verified 5h ago
64
GLP-1SG (Semaglutide) 30mg
Size30 mg
Total$120.00
$/mg$4.00
In stock
View
Pure RX Peptides
⚠ as of 5d ago
60
Sema 15mg (Semaglutide)
Size15 mg
Total$65.00
$/mg$4.33
In stock
View
Renova Peptides
⚠ as of 5d ago
68
Semaglutide 10-Vial Kit (10 × 20mg = 200mg)
Kit
Size200 mg
Total$880.00
$/mg$4.40
In stock
View
EZ Peptides
verified 5h ago
74
EZP-1P 10mg (Semaglutide)
Size10 mg
Total$48.00
$/mg$4.80
In stock
View
True Peptide Labs
verified 5h ago
64
GLP-1SG (Semaglutide) 20mg
Size20 mg
Total$105.00
$/mg$5.25
In stock
View
Renova Peptides
⚠ as of 5d ago
68
Semaglutide 10-Vial Kit (10 × 10mg = 100mg)
Kit
Size100 mg
Total$560.00
$/mg$5.60
In stock
View
EZ Peptides
verified 5h ago
74
EZP-1P Kit (Semaglutide, 10 x 5mg = 50mg)
Kit
Size50 mg
Total$288.00
$/mg$5.76
In stock
View
Platinum Lion Peptides
verified 5h ago
73
GLP-1 (S) 20mg
Size20 mg
Total$119.99
$/mg$6.00
In stock
View
True Peptide Labs
verified 5h ago
64
GLP-1SG (Semaglutide) 15mg
Size15 mg
Total$90.00
$/mg$6.00
In stock
View
Modern Research Peptides
⚠ as of 5d ago
73
GLP1-S 5mg (Semaglutide)
Size5 mg
Total$31.99
$/mg$6.40
In stock
View
Platinum Lion Peptides
verified 5h ago
73
GLP-1 (S) 10mg
Size10 mg
Total$64.99
$/mg$6.50
In stock
View
EZ Peptides
verified 5h ago
74
EZP-1P 5mg (Semaglutide)
Size5 mg
Total$35.00
$/mg$7.00
In stock
View
Royal Peptides
verified 5h ago
72
Semaglutide 10mg (Single Vial)
Size10 mg
Total$75.00
$/mg$7.50
In stock
View
True Peptide Labs
verified 5h ago
64
GLP-1SG (Semaglutide) 10mg
Size10 mg
Total$75.00
$/mg$7.50
In stock
View
Royal Peptides
verified 5h ago
72
Semaglutide 20mg (Single Vial)
Size20 mg
Total$155.00
$/mg$7.75
In stock
View
AminoVault
verified 5h ago
68
Glucagon-Like Peptide-1 (7-36) 10mg
Size10 mg
Total$79.05
$/mg$7.91
In stock
View
Apollo Peptide Sciences
verified 5h ago
76
GLP-1 S 15mg (Semaglutide)
Size15 mg
Total$119.99
$/mg$8.00
In stock
View
Ignite Peptides
verified 5h ago
69
GLP-1 (S) 20mg
Size20 mg
Total$170.00
$/mg$8.50
In stock
View
Iron Peptides
⚠ as of 5d ago
76
SEMA GLP-1 30mg
Size30 mg
Total$259.99
$/mg$8.67
In stock
View
Royal Peptides
verified 5h ago
72
Semaglutide 5mg (Single Vial)
Size5 mg
Total$45.00
$/mg$9.00
In stock
View
Guru Peptides
⚠ as of 5d ago
66
GLP-1 (Semaglutide) 15mg
Size15 mg
Total$139.95
$/mg$9.33
In stock
View
Apollo Peptide Sciences
verified 5h ago
76
GLP-1 S 10mg (Semaglutide)
Size10 mg
Total$99.99
$/mg$10.00
In stock
View
Ascension Peptides
verified 5h ago
75
S-5 (Semaglutide 5mg)
Size5 mg
Total$50.00
$/mg$10.00
In stock
View
Evolve Peptides
verified 5h ago
77
Semaglutide 20mg
Size20 mg
Total$199.90
$/mg$10.00
In stock
View
Nova Peptide Supply
verified 5h ago
77
GLP-1 SM 10mg (Semaglutide)
Size10 mg
Total$99.99
$/mg$10.00
In stock
View
Ignite Peptides
verified 5h ago
69
GLP-1 (S) 5mg
Size5 mg
Total$60.00
$/mg$12.00
In stock
View
Evolve Peptides
verified 5h ago
77
Semaglutide 10mg
Size10 mg
Total$129.90
$/mg$12.99
In stock
View
Iron Peptides
⚠ as of 5d ago
76
SEMA GLP-1 10mg
Size10 mg
Total$129.99
$/mg$13.00
In stock
View
LA Peptides
⚠ as of 5d ago
74
GLP-1 S 5mg (Semaglutide)
Size5 mg
Total$64.99
$/mg$13.00
In stock
View
Evolve Peptides
verified 5h ago
77
Semaglutide 5mg
Size5 mg
Total$69.90
$/mg$13.98
In stock
View
Guru Peptides
⚠ as of 5d ago
66
GLP-1 (Semaglutide) 5mg
Size5 mg
Total$69.95
$/mg$13.99
In stock
View
Certified Peptides
⚠ as of 5d ago
71
GLP1-SMA (Semaglutide) 10mg
Size10 mg
Total$146.00
$/mg$14.60
In stock
View
Apollo Peptide Sciences
verified 5h ago
76
GLP-1 S 5mg (Semaglutide)
Size5 mg
Total$79.99
$/mg$16.00
In stock
View
Evolve Peptides
verified 5h ago
77
Semaglutide 2mg
Size2 mg
Total$39.90
$/mg$19.95
In stock
View
Certified Peptides
⚠ as of 5d ago
71
GLP1-SMA (Semaglutide) 5mg
Size5 mg
Total$100.00
$/mg$20.00
In stock
View
Almighty Peptides
verified 5h ago
69
Semaglutide 5mg (BOGO)
Size5 mg
Total$175.00
$/mg$35.00
In stock
View

Price History

30-day window · per vendor

Each line tracks one vendor's SKU over the last 30 days. Green numbers = price dropped. Amber = price rose. Flat gray = no movement.

Reta One Labs
RO-1S 20mg (Semaglutide) · 20mg
New
Low · High— · —
Current—
30d—
Modern Research Peptides
GLP1-S 30mg (Semaglutide) · 30mg
New
Low · High— · —
Current—
30d—
Reta One Labs
RO-1S 10mg (Semaglutide) · 10mg
New
Low · High— · —
Current—
30d—
Puratek Peptides
PUR-1S (Semaglutide) 10 mg · 10mg
New
Low · High— · —
Current—
30d—
EZ Peptides
EZP-1P Kit (Semaglutide, 10 x 10mg = 100mg) · 100mg
New
Low · High$368.00 · $368.00
Current$368.00
30dFlat
Pure RX Peptides
Sema 30mg (Semaglutide) · 30mg
New
Low · High— · —
Current—
30d—
Modern Research Peptides
GLP1-S 10mg (Semaglutide) · 10mg
New
Low · High— · —
Current—
30d—
True Peptide Labs
GLP-1SG (Semaglutide) 30mg · 30mg
New
Low · High— · —
Current—
30d—
Pure RX Peptides
Sema 15mg (Semaglutide) · 15mg
New
Low · High— · —
Current—
30d—
Renova Peptides
Semaglutide 10-Vial Kit (10 × 20mg = 200mg) · 200mg
New
Low · High— · —
Current—
30d—
EZ Peptides
EZP-1P 10mg (Semaglutide) · 10mg
New
Low · High$48.00 · $48.00
Current$48.00
30dFlat
True Peptide Labs
GLP-1SG (Semaglutide) 20mg · 20mg
New
Low · High— · —
Current—
30d—
Renova Peptides
Semaglutide 10-Vial Kit (10 × 10mg = 100mg) · 100mg
New
Low · High— · —
Current—
30d—
EZ Peptides
EZP-1P Kit (Semaglutide, 10 x 5mg = 50mg) · 50mg
New
Low · High$288.00 · $288.00
Current$288.00
30dFlat
Platinum Lion Peptides
GLP-1 (S) 20mg · 20mg
New
Low · High— · —
Current—
30d—
True Peptide Labs
GLP-1SG (Semaglutide) 15mg · 15mg
New
Low · High— · —
Current—
30d—
Modern Research Peptides
GLP1-S 5mg (Semaglutide) · 5mg
New
Low · High— · —
Current—
30d—
Platinum Lion Peptides
GLP-1 (S) 10mg · 10mg
New
Low · High— · —
Current—
30d—
EZ Peptides
EZP-1P 5mg (Semaglutide) · 5mg
New
Low · High$35.00 · $35.00
Current$35.00
30dFlat
Royal Peptides
Semaglutide 10mg (Single Vial) · 10mg
New
Low · High— · —
Current—
30d—
True Peptide Labs
GLP-1SG (Semaglutide) 10mg · 10mg
New
Low · High— · —
Current—
30d—
Royal Peptides
Semaglutide 20mg (Single Vial) · 20mg
New
Low · High— · —
Current—
30d—
AminoVault
Glucagon-Like Peptide-1 (7-36) 10mg · 10mg
Low · High$79.05 · $93.00
Current$79.05
30d-15%
Apollo Peptide Sciences
GLP-1 S 15mg (Semaglutide) · 15mg
New
Low · High— · —
Current—
30d—
Ignite Peptides
GLP-1 (S) 20mg · 20mg
New
Low · High— · —
Current—
30d—
Iron Peptides
SEMA GLP-1 30mg · 30mg
New
Low · High— · —
Current—
30d—
Royal Peptides
Semaglutide 5mg (Single Vial) · 5mg
New
Low · High— · —
Current—
30d—
Guru Peptides
GLP-1 (Semaglutide) 15mg · 15mg
New
Low · High— · —
Current—
30d—
Apollo Peptide Sciences
GLP-1 S 10mg (Semaglutide) · 10mg
New
Low · High— · —
Current—
30d—
Ascension Peptides
S-5 (Semaglutide 5mg) · 5mg
Low · High$50.00 · $70.00
Current$50.00
30d-17%
Evolve Peptides
Semaglutide 20mg · 20mg
New
Low · High— · —
Current—
30d—
Nova Peptide Supply
GLP-1 SM 10mg (Semaglutide) · 10mg
Low · High$99.99 · $128.00
Current$99.99
30d-22%
Ignite Peptides
GLP-1 (S) 5mg · 5mg
New
Low · High— · —
Current—
30d—
Evolve Peptides
Semaglutide 10mg · 10mg
New
Low · High— · —
Current—
30d—
Iron Peptides
SEMA GLP-1 10mg · 10mg
New
Low · High— · —
Current—
30d—
LA Peptides
GLP-1 S 5mg (Semaglutide) · 5mg
New
Low · High— · —
Current—
30d—
Evolve Peptides
Semaglutide 5mg · 5mg
New
Low · High— · —
Current—
30d—
Guru Peptides
GLP-1 (Semaglutide) 5mg · 5mg
New
Low · High— · —
Current—
30d—
Certified Peptides
GLP1-SMA (Semaglutide) 10mg · 10mg
New
Low · High— · —
Current—
30d—
Apollo Peptide Sciences
GLP-1 S 5mg (Semaglutide) · 5mg
New
Low · High— · —
Current—
30d—
Evolve Peptides
Semaglutide 2mg · 2mg
New
Low · High— · —
Current—
30d—
Certified Peptides
GLP1-SMA (Semaglutide) 5mg · 5mg
New
Low · High— · —
Current—
30d—
Almighty Peptides
Semaglutide 5mg (BOGO) · 5mg
New
Low · High$175.00 · $175.00
Current$175.00
30dFlat

Also Available in Blends

Pre-mixed multi-peptide stacks from tracked vendors that include Semaglutide.

3 blends

Cagrilintide + SemaglutideModern Research Peptides73
CAGRI/SEMA Blend 10mg (Cagrilintide 5 + Semaglutide 5)
5mg Semaglutide+5mg Cagrilintide
Total · 10mg$65.99
Blend $/mg$6.60
InView →
Cagrilintide + SemaglutideCertified Peptides71
Cagrilintide + Semaglutide Blend 10mg (5mg / 5mg)
5mg Semaglutide+5mg Cagrilintide
Total · 10mg$144.00
Blend $/mg$14.40
InView →
Cagrilintide + SemaglutideApollo Peptide Sciences76
GLP-1 C + GLP-1 S — Cagrilintide 5mg + Semaglutide 5mg
5mg Semaglutide+5mg Cagrilintide
Total · 10mg$109.99
Blend $/mg$11.00
OOSView →

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How This Works

Prices auto-refresh daily from each vendor's public catalog. The “Best $/mg” row is the cheapest in-stock option across tracked vendors. See our methodology for how the Stacked Score is computed.

Semaglutide — Frequently Asked

How much does Semaglutide cost?: Across 20 vetted research vendors Stacked tracks, Semaglutide runs $1.95/mg to $45.00/mg. The lowest in-stock total right now is $24.95 from Reta One Labs. Prices are pulled from each vendor's public catalog and refresh daily.
Where can I buy Semaglutide?: Semaglutide is listed by 20 research-peptide vendors in the Stacked directory, including Reta One Labs, Modern Research Peptides, Puratek Peptides. Compare $/mg, total price, stock, and each vendor's Stacked Score in the table above, then click through to the vendor. Stacked does not sell peptides.
Who has the cheapest Semaglutide?: The current lowest price is $1.95/mg from Reta One Labs (Stacked Score 66/100). Cheapest isn't automatically best — weigh each vendor's testing and Stacked Score, not price alone, before ordering.
Is Semaglutide legal to buy?: Semaglutide and other research peptides are sold strictly for laboratory and research use — they are not approved by the FDA for human consumption. Legal status and import rules vary by country and are the buyer's responsibility. For research purposes only; not medical advice.

Affiliate Disclosure

Stacked earns a commission on qualifying purchases made through the vendor links on this page. Affiliate relationships do not influence our Stacked Score or which vendors we track. Per FTC guidelines, all sponsored links are marked rel="sponsored".