PepsTracker › Vendors › Fusion Peptide vs AtomiK Labz
Updated August 2026 · 20 shared compounds · discount codes applied
AtomiK Labz is cheaper on 18 of the 20 shared peptides, Fusion Peptide on 2 — that is 90% of the 20 compounds where the two actually differ.
Averaged across every shared compound, AtomiK Labz runs about 38% lower on cost per milligram. Both figures already include each vendor's discount code.
pepstracker (15% off)pepstracker30 (30% 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 | Fusion Peptide | AtomiK Labz | Cheaper |
|---|---|---|---|
| NAD+ | $0.137/mg $136.84 / 1000mg | $0.038/mg $76.30 / 2000mg | AtomiK Labz 72% cheaper |
| GHK-Cu | $0.599/mg $68.84 / 115mg | $0.385/mg $38.50 / 100mg | AtomiK Labz 36% cheaper |
| Epithalon | $1.82/mg $90.94 / 50mg | $2.45/mg $24.50 / 10mg | Fusion Peptide 26% cheaper |
| Melanotan II | $4.17/mg $45.89 / 11mg | $2.03/mg $20.30 / 10mg | AtomiK Labz 51% cheaper |
| BPC-157 | $5.86/mg $58.64 / 10mg | $2.27/mg $45.50 / 20mg | AtomiK Labz 61% cheaper |
| PT-141 (Bremelanotide) | $2.90/mg $39.09 / 13.5mg | $2.59/mg $25.90 / 10mg | AtomiK Labz 11% cheaper |
| MOTS-c | $3.55/mg $158.09 / 44.5mg | $2.73/mg $27.30 / 10mg | AtomiK Labz 23% cheaper |
| ARA-290 | $4.67/mg $56.09 / 12mg | $3.46/mg $55.30 / 16mg | AtomiK Labz 26% cheaper |
| Semaglutide | $10.79/mg $323.84 / 30mg | $3.46/mg $69.30 / 20mg | AtomiK Labz 68% cheaper |
| Tirzepatide | $3.52/mg $228.64 / 65mg | $3.46/mg $69.30 / 20mg | AtomiK Labz 1% cheaper |
| BPC-157 + TB-500 Blend | $12.75/mg $127.49 / 10mg | $3.46/mg $69.30 / 20mg | AtomiK Labz 73% cheaper |
| KPV | $3.61/mg $43.34 / 12mg | $3.85/mg $38.50 / 10mg | Fusion Peptide 6% cheaper |
| Retatrutide | $5.38/mg $322.99 / 60mg | $3.81/mg $76.30 / 20mg | AtomiK Labz 29% cheaper |
| Tesamorelin | $6.37/mg $63.74 / 10mg | $3.85/mg $38.50 / 10mg | AtomiK Labz 40% cheaper |
| Ipamorelin | $6.20/mg $62.04 / 10mg | $3.92/mg $39.20 / 10mg | AtomiK Labz 37% cheaper |
| Sermorelin | $6.46/mg $32.29 / 5mg | $4.48/mg $44.80 / 10mg | AtomiK Labz 31% cheaper |
| TB-500 | $6.88/mg $68.84 / 10mg | $4.55/mg $45.50 / 10mg | AtomiK Labz 34% cheaper |
| DSIP | $5.61/mg $28.04 / 5mg | $4.90/mg $24.50 / 5mg | AtomiK Labz 13% cheaper |
Neither vendor wins across the board, which is the main takeaway. Fusion Peptide is cheaper on 2 of the 20 shared compounds and AtomiK Labz on 18. 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: Fusion Peptide lists around 45 compounds we track versus 24 at AtomiK Labz. Outside the 20 overlap, only one of them will stock what you need.
Fusion Peptide — code pepstracker for 15% off. AtomiK Labz — code pepstracker30 for 30% 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.
AtomiK Labz is cheaper on 18 of the 20 peptides both vendors stock, Fusion Peptide on 2. Across the compounds where they differ, that is 90% in AtomiK Labz's favour. On average cost-per-milligram, AtomiK Labz comes out roughly 38% lower. Neither wins everything, so check the specific compound you need.
Fusion Peptide uses code pepstracker for 15% off, and AtomiK Labz uses pepstracker30 for 30% 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 20 compounds. Fusion Peptide lists roughly 45 tracked compounds and AtomiK Labz lists about 24. 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 27 vendors in real time, or browse every vendor we track.
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