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⚖️ Vendor Comparison

AtomiK Labz vs EZ Peptides — Which Is Cheaper in 2026?

Updated July 2026 · 22 shared compounds · discount codes applied

🏆 The verdict

AtomiK Labz is cheaper on 21 of the 22 shared peptides, EZ Peptides on 1 — that is 95% of the 22 compounds where the two actually differ.

Averaged across every shared compound, AtomiK Labz runs about 32% lower on cost per milligram. Both figures already include each vendor's discount code.

AtomiK Labz
Cheaper on 21 compounds
Catalog: 24 tracked
Code: pepstracker30 (30% off)
EZ Peptides
Cheaper on 1 compounds
Catalog: 43 tracked
Code: pepstracker (10% off)

Head-to-head: cost per milligram

Every price below is the discounted price divided by milligrams, so vial sizes do not distort the comparison. Sorted by cheapest available option.

PeptideAtomiK LabzEZ PeptidesCheaper
NAD+$0.038/mg
$76.30 / 2000mg
$0.122/mg
$61.20 / 500mg
AtomiK Labz
69% cheaper
GHK-Cu$0.385/mg
$38.50 / 100mg
$0.477/mg
$47.70 / 100mg
AtomiK Labz
19% cheaper
Klow Blend$1.07/mg
$97.30 / 91mg
$1.10/mg
$88.20 / 80mg
AtomiK Labz
3% cheaper
Melanotan II$2.03/mg
$20.30 / 10mg
$3.96/mg
$39.60 / 10mg
AtomiK Labz
49% cheaper
BPC-157$2.27/mg
$45.50 / 20mg
$3.96/mg
$39.60 / 10mg
AtomiK Labz
43% cheaper
Tirzepatide$3.46/mg
$69.30 / 20mg
$2.28/mg
$136.80 / 60mg
EZ Peptides
34% cheaper
Epithalon$2.45/mg
$24.50 / 10mg
$3.42/mg
$34.20 / 10mg
AtomiK Labz
28% cheaper
Selank$2.45/mg
$24.50 / 10mg
$3.96/mg
$39.60 / 10mg
AtomiK Labz
38% cheaper
PT-141 (Bremelanotide)$2.59/mg
$25.90 / 10mg
$3.96/mg
$39.60 / 10mg
AtomiK Labz
35% cheaper
MOTS-c$2.73/mg
$27.30 / 10mg
$4.86/mg
$48.60 / 10mg
AtomiK Labz
44% cheaper
ARA-290$3.46/mg
$55.30 / 16mg
$4.32/mg
$43.20 / 10mg
AtomiK Labz
20% cheaper
Semaglutide$3.46/mg
$69.30 / 20mg
$4.32/mg
$43.20 / 10mg
AtomiK Labz
20% cheaper
BPC-157 + TB-500 Blend$3.46/mg
$69.30 / 20mg
$3.96/mg
$79.20 / 20mg
AtomiK Labz
13% cheaper
Retatrutide$3.81/mg
$76.30 / 20mg
$3.90/mg
$187.20 / 48mg
AtomiK Labz
2% cheaper
Tesamorelin$3.85/mg
$38.50 / 10mg
$6.12/mg
$61.20 / 10mg
AtomiK Labz
37% cheaper
KPV$3.85/mg
$38.50 / 10mg
$3.96/mg
$39.60 / 10mg
AtomiK Labz
3% cheaper
Ipamorelin$3.92/mg
$39.20 / 10mg
$3.96/mg
$39.60 / 10mg
AtomiK Labz
1% cheaper
Tesamorelin/Ipamorelin Blend$3.97/mg
$59.50 / 15mg
$6.09/mg
$79.20 / 13mg
AtomiK Labz
35% cheaper

How to read this

Neither vendor wins across the board, which is the main takeaway. AtomiK Labz is cheaper on 21 of the 22 shared compounds and EZ Peptides on 1. If you buy a single compound, the table above is the answer. If you are placing one larger order to save on shipping, the vendor that wins your two or three highest-volume compounds usually nets out ahead.

Catalog breadth matters too: AtomiK Labz lists around 24 compounds we track versus 43 at EZ Peptides. Outside the 22 overlap, only one of them will stock what you need.

Discount codes

AtomiK Labz — code pepstracker30 for 30% off. EZ Peptides — code pepstracker for 10% off. Codes are applied before ranking on this page, which is why the order can differ from list prices. Always confirm the code at checkout.

Frequently asked questions

Which is cheaper overall, AtomiK Labz or EZ Peptides?

AtomiK Labz is cheaper on 21 of the 22 peptides both vendors stock, EZ Peptides on 1. Across the compounds where they differ, that is 95% in AtomiK Labz's favour. On average cost-per-milligram, AtomiK Labz comes out roughly 32% lower. Neither wins everything, so check the specific compound you need.

What discount codes do AtomiK Labz and EZ Peptides offer?

AtomiK Labz uses code pepstracker30 for 30% off, and EZ Peptides uses pepstracker for 10% off. Every price in the comparison table already has these codes applied, which is why the ranking can differ from list prices.

Do these two vendors carry the same peptides?

They overlap on 22 compounds. AtomiK Labz lists roughly 24 tracked compounds and EZ Peptides lists about 43. If you need something outside the overlap, only one of them will have it.

Why compare cost per milligram instead of price?

Vial sizes differ between vendors, so sticker price is misleading. A larger vial at a higher price is often cheaper per milligram. Every figure here is the discounted price divided by milligrams, which is the only like-for-like comparison.

Compare live prices

Open the live tracker to compare these two against all 25 vendors in real time, or browse every vendor we track.

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