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⚖️ Vendor Comparison

Pinnacle Peptide Labs vs S1 Labs — Which Is Cheaper in 2026?

Updated July 2026 · 10 shared compounds · discount codes applied

🏆 The verdict

S1 Labs is cheaper on 9 of the 10 shared peptides, Pinnacle Peptide Labs on 1 — that is 90% of the 10 compounds where the two actually differ.

Averaged across every shared compound, S1 Labs runs about 20% lower on cost per milligram. Both figures already include each vendor's discount code.

Pinnacle Peptide Labs
Cheaper on 1 compounds
Catalog: 34 tracked
Code: pepstracker (15% off)
S1 Labs
Cheaper on 9 compounds
Catalog: 18 tracked
Code: pepstracker10 (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.

PeptidePinnacle Peptide LabsS1 LabsCheaper
NAD+$0.153/mg
$76.49 / 500mg
$0.117/mg
$58.49 / 500mg
S1 Labs
24% cheaper
GHK-Cu$0.680/mg
$67.99 / 100mg
$0.360/mg
$36.00 / 100mg
S1 Labs
47% cheaper
Bacteriostatic Water$1.10/mg
$11.04 / 10mg
$0.360/mg
$3.60 / 10mg
S1 Labs
67% cheaper
MOTS-c$5.95/mg
$59.49 / 10mg
$3.42/mg
$34.20 / 10mg
S1 Labs
43% cheaper
SS-31$5.95/mg
$59.49 / 10mg
$3.42/mg
$34.20 / 10mg
S1 Labs
43% cheaper
Semax$5.10/mg
$50.99 / 10mg
$3.60/mg
$35.99 / 10mg
S1 Labs
29% cheaper
Tesamorelin$7.65/mg
$76.49 / 10mg
$3.78/mg
$37.80 / 10mg
S1 Labs
51% cheaper
BPC-157 + TB-500 Blend$5.31/mg
$106.24 / 20mg
$6.30/mg
$62.99 / 10mg
Pinnacle Peptide Labs
16% cheaper
Retatrutide$12.75/mg
$127.49 / 10mg
$6.30/mg
$62.99 / 10mg
S1 Labs
51% cheaper
IGF-1 LR3$67.99/mg
$67.99 / 1mg
$62.99/mg
$62.99 / 1mg
S1 Labs
7% cheaper

How to read this

Neither vendor wins across the board, which is the main takeaway. Pinnacle Peptide Labs is cheaper on 1 of the 10 shared compounds and S1 Labs on 9. 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: Pinnacle Peptide Labs lists around 34 compounds we track versus 18 at S1 Labs. Outside the 10 overlap, only one of them will stock what you need.

Discount codes

Pinnacle Peptide Labs — code pepstracker for 15% off. S1 Labs — code pepstracker10 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, Pinnacle Peptide Labs or S1 Labs?

S1 Labs is cheaper on 9 of the 10 peptides both vendors stock, Pinnacle Peptide Labs on 1. Across the compounds where they differ, that is 90% in S1 Labs's favour. On average cost-per-milligram, S1 Labs comes out roughly 20% lower. Neither wins everything, so check the specific compound you need.

What discount codes do Pinnacle Peptide Labs and S1 Labs offer?

Pinnacle Peptide Labs uses code pepstracker for 15% off, and S1 Labs uses pepstracker10 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 10 compounds. Pinnacle Peptide Labs lists roughly 34 tracked compounds and S1 Labs lists about 18. 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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