PepsTracker › Vendors › Fusion Peptide vs Solas Science
Updated August 2026 · 7 shared compounds · discount codes applied
Solas Science is cheaper on 5 of the 7 shared peptides, Fusion Peptide on 2 — that is 71% of the 7 compounds where the two actually differ.
Averaged across every shared compound, Solas Science runs about 30% lower on cost per milligram. Both figures already include each vendor's discount code.
pepstracker (15% 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 | Solas Science | Cheaper |
|---|---|---|---|
| NAD+ | $0.137/mg $136.84 / 1000mg | $0.080/mg $40.00 / 500mg | Solas Science 42% cheaper |
| GHK-Cu | $0.599/mg $68.84 / 115mg | $0.500/mg $50.00 / 100mg | Solas Science 16% cheaper |
| Tirzepatide | $3.52/mg $228.64 / 65mg | $1.63/mg $98.00 / 60mg | Solas Science 54% cheaper |
| Retatrutide | $5.38/mg $322.99 / 60mg | $4.00/mg $120.00 / 30mg | Solas Science 26% cheaper |
| Melanotan II | $4.17/mg $45.89 / 11mg | $4.20/mg $42.00 / 10mg | Fusion Peptide 1% cheaper |
| CJC/Ipa Blend | $13.77/mg $68.84 / 5mg | $6.30/mg $63.00 / 10mg | Solas Science 54% cheaper |
| Tesamorelin | $6.37/mg $63.74 / 10mg | $7.00/mg $70.00 / 10mg | Fusion Peptide 9% cheaper |
Neither vendor wins across the board, which is the main takeaway. Fusion Peptide is cheaper on 2 of the 7 shared compounds and Solas Science on 5. 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 10 at Solas Science. Outside the 7 overlap, only one of them will stock what you need.
Fusion Peptide — code pepstracker for 15% off. Solas Science — code for 0% 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.
Solas Science is cheaper on 5 of the 7 peptides both vendors stock, Fusion Peptide on 2. Across the compounds where they differ, that is 71% in Solas Science's favour. On average cost-per-milligram, Solas Science comes out roughly 30% lower. Neither wins everything, so check the specific compound you need.
Fusion Peptide uses code pepstracker for 15% off, and Solas Science uses for 0% 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 7 compounds. Fusion Peptide lists roughly 45 tracked compounds and Solas Science lists about 10. 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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