PepsTracker › Vendors › AtomiK Labz vs Reta One Labs
Updated July 2026 · 11 shared compounds · discount codes applied
Reta One Labs is cheaper on 8 of the 11 shared peptides, AtomiK Labz on 3 — that is 73% of the 11 compounds where the two actually differ.
Averaged across every shared compound, Reta One Labs runs about 16% lower on cost per milligram. Both figures already include each vendor's discount code.
pepstracker30 (30% off)pepstracker (5% off)Every price below is the discounted price divided by milligrams, so vial sizes do not distort the comparison. Sorted by cheapest available option.
| Peptide | AtomiK Labz | Reta One Labs | Cheaper |
|---|---|---|---|
| NAD+ | $0.038/mg $76.30 / 2000mg | $0.112/mg $56.05 / 500mg | AtomiK Labz 66% cheaper |
| GHK-Cu | $0.385/mg $38.50 / 100mg | $0.465/mg $46.55 / 100mg | AtomiK Labz 17% cheaper |
| Klow Blend | $1.07/mg $97.30 / 91mg | $0.938/mg $75.05 / 80mg | Reta One Labs 12% cheaper |
| MOTS-c | $2.73/mg $27.30 / 10mg | $1.71/mg $68.40 / 40mg | Reta One Labs 37% cheaper |
| Semaglutide | $3.46/mg $69.30 / 20mg | $1.85/mg $37.05 / 20mg | Reta One Labs 47% cheaper |
| BPC-157 | $2.27/mg $45.50 / 20mg | $3.70/mg $37.05 / 10mg | AtomiK Labz 39% cheaper |
| Tirzepatide | $3.46/mg $69.30 / 20mg | $2.28/mg $22.80 / 10mg | Reta One Labs 34% cheaper |
| PT-141 (Bremelanotide) | $2.59/mg $25.90 / 10mg | $2.47/mg $24.70 / 10mg | Reta One Labs 5% cheaper |
| Retatrutide | $3.81/mg $76.30 / 20mg | $2.75/mg $27.55 / 10mg | Reta One Labs 28% cheaper |
| BPC-157 + TB-500 Blend | $3.46/mg $69.30 / 20mg | $2.85/mg $57.00 / 20mg | Reta One Labs 18% cheaper |
| Tesamorelin | $3.85/mg $38.50 / 10mg | $3.70/mg $37.05 / 10mg | Reta One Labs 4% cheaper |
Neither vendor wins across the board, which is the main takeaway. AtomiK Labz is cheaper on 3 of the 11 shared compounds and Reta One Labs on 8. 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 14 at Reta One Labs. Outside the 11 overlap, only one of them will stock what you need.
AtomiK Labz — code pepstracker30 for 30% 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.
Reta One Labs is cheaper on 8 of the 11 peptides both vendors stock, AtomiK Labz on 3. Across the compounds where they differ, that is 73% in Reta One Labs's favour. On average cost-per-milligram, Reta One Labs comes out roughly 16% lower. Neither wins everything, so check the specific compound you need.
AtomiK Labz uses code pepstracker30 for 30% 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.
They overlap on 11 compounds. AtomiK Labz lists roughly 24 tracked compounds and Reta One Labs lists about 14. If you need something outside the overlap, only one of them will have it.
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.
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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