PepsTracker › Vendors › EZ Peptides vs Solas Science
Updated July 2026 · 11 shared compounds · discount codes applied
Solas Science is cheaper on 8 of the 11 shared peptides, EZ Peptides on 3 — that is 73% of the 11 compounds where the two actually differ.
Averaged across every shared compound, Solas Science runs about 3% lower on cost per milligram. Both figures already include each vendor's discount code.
pepstracker (10% 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 | EZ Peptides | Solas Science | Cheaper |
|---|---|---|---|
| NAD+ | $0.122/mg $61.20 / 500mg | $0.080/mg $40.00 / 500mg | Solas Science 35% cheaper |
| GHK-Cu | $0.477/mg $47.70 / 100mg | $0.420/mg $42.00 / 100mg | Solas Science 12% cheaper |
| Bacteriostatic Water | $1.05/mg $31.50 / 30mg | $1.00/mg $30.00 / 30mg | Solas Science 5% cheaper |
| Klow Blend | $1.10/mg $88.20 / 80mg | $1.06/mg $85.00 / 80mg | Solas Science 4% cheaper |
| Tirzepatide | $2.28/mg $136.80 / 60mg | $1.08/mg $65.00 / 60mg | Solas Science 52% cheaper |
| Retatrutide | $3.90/mg $187.20 / 48mg | $2.00/mg $60.00 / 30mg | Solas Science 49% cheaper |
| Semax | $3.96/mg $39.60 / 10mg | $3.80/mg $38.00 / 10mg | Solas Science 4% cheaper |
| Selank | $3.96/mg $39.60 / 10mg | $3.80/mg $38.00 / 10mg | Solas Science 4% cheaper |
| Melanotan II | $3.96/mg $39.60 / 10mg | $4.20/mg $42.00 / 10mg | EZ Peptides 6% cheaper |
| CJC/Ipa Blend | $4.77/mg $47.70 / 10mg | $6.30/mg $63.00 / 10mg | EZ Peptides 24% cheaper |
| Tesamorelin | $6.12/mg $61.20 / 10mg | $7.00/mg $70.00 / 10mg | EZ Peptides 13% cheaper |
Neither vendor wins across the board, which is the main takeaway. EZ Peptides is cheaper on 3 of the 11 shared compounds and Solas Science 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: EZ Peptides lists around 43 compounds we track versus 11 at Solas Science. Outside the 11 overlap, only one of them will stock what you need.
EZ Peptides — code pepstracker for 10% 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 8 of the 11 peptides both vendors stock, EZ Peptides on 3. Across the compounds where they differ, that is 73% in Solas Science's favour. On average cost-per-milligram, Solas Science comes out roughly 3% lower. Neither wins everything, so check the specific compound you need.
EZ Peptides uses code pepstracker for 10% 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 11 compounds. EZ Peptides lists roughly 43 tracked compounds and Solas Science lists about 11. 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.
PepsTracker is a price comparison service. All products referenced are for research use only. We do not sell or distribute any products. Affiliate links may generate a commission.