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⚖️ Vendor Comparison

Ion Peptides vs Reta One Labs — Which Is Cheaper in 2026?

Updated July 2026 · 13 shared compounds · discount codes applied

🏆 The verdict

Reta One Labs is cheaper on 10 of the 13 shared peptides, Ion Peptides on 3 — that is 77% of the 13 compounds where the two actually differ.

Averaged across every shared compound, Reta One Labs runs about 34% lower on cost per milligram. Both figures already include each vendor's discount code.

Ion Peptides
Cheaper on 3 compounds
Catalog: 51 tracked
Code: Glowlab (15% off)
Reta One Labs
Cheaper on 10 compounds
Catalog: 14 tracked
Code: pepstracker (5% 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.

PeptideIon PeptidesReta One LabsCheaper
NAD+$0.100/mg
$50.15 / 500mg
$0.112/mg
$56.05 / 500mg
Ion Peptides
11% cheaper
GHK-Cu$0.493/mg
$24.65 / 50mg
$0.465/mg
$46.55 / 100mg
Reta One Labs
6% cheaper
Glow Blend$1.08/mg
$75.65 / 70mg
$0.909/mg
$63.65 / 70mg
Reta One Labs
16% cheaper
Klow Blend$1.16/mg
$92.65 / 80mg
$0.938/mg
$75.05 / 80mg
Reta One Labs
19% cheaper
MOTS-c$3.57/mg
$35.70 / 10mg
$1.71/mg
$68.40 / 40mg
Reta One Labs
52% cheaper
Semaglutide$2.80/mg
$84.15 / 30mg
$1.85/mg
$37.05 / 20mg
Reta One Labs
34% cheaper
Tirzepatide$4.17/mg
$41.65 / 10mg
$2.28/mg
$22.80 / 10mg
Reta One Labs
45% cheaper
SS-31$2.36/mg
$118.15 / 50mg
$3.23/mg
$32.30 / 10mg
Ion Peptides
27% cheaper
BPC-157$2.46/mg
$24.65 / 10mg
$3.70/mg
$37.05 / 10mg
Ion Peptides
33% cheaper
PT-141 (Bremelanotide)$3.15/mg
$31.45 / 10mg
$2.47/mg
$24.70 / 10mg
Reta One Labs
21% cheaper
Retatrutide$7.65/mg
$38.25 / 5mg
$2.75/mg
$27.55 / 10mg
Reta One Labs
64% cheaper
BPC-157 + TB-500 Blend$4.08/mg
$40.80 / 10mg
$2.85/mg
$57.00 / 20mg
Reta One Labs
30% cheaper
Tesamorelin$7.65/mg
$38.25 / 5mg
$3.70/mg
$37.05 / 10mg
Reta One Labs
52% cheaper

How to read this

Neither vendor wins across the board, which is the main takeaway. Ion Peptides is cheaper on 3 of the 13 shared compounds and Reta One Labs on 10. 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: Ion Peptides lists around 51 compounds we track versus 14 at Reta One Labs. Outside the 13 overlap, only one of them will stock what you need.

Discount codes

Ion Peptides — code Glowlab for 15% off. Reta One Labs — code pepstracker for 5% 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, Ion Peptides or Reta One Labs?

Reta One Labs is cheaper on 10 of the 13 peptides both vendors stock, Ion Peptides on 3. Across the compounds where they differ, that is 77% in Reta One Labs's favour. On average cost-per-milligram, Reta One Labs comes out roughly 34% lower. Neither wins everything, so check the specific compound you need.

What discount codes do Ion Peptides and Reta One Labs offer?

Ion Peptides uses code Glowlab for 15% off, and Reta One Labs uses pepstracker for 5% 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 13 compounds. Ion Peptides lists roughly 51 tracked compounds and Reta One Labs lists about 14. 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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