PepsTracker › Vendors › Labsourced vs Puratek Peptides
Updated July 2026 · 25 shared compounds · discount codes applied
Puratek Peptides is cheaper on 21 of the 25 shared peptides, Labsourced on 4 — that is 84% of the 25 compounds where the two actually differ.
Averaged across every shared compound, Puratek Peptides runs about 29% lower on cost per milligram. Both figures already include each vendor's discount code.
Glowlab (15% off)pepstracker (0% 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 | Labsourced | Puratek Peptides | Cheaper |
|---|---|---|---|
| Glutathione | $0.033/mg $50.15 / 1500mg | $0.035/mg $51.95 / 1500mg | Labsourced 3% cheaper |
| GHK-Cu | $0.587/mg $58.65 / 100mg | $0.289/mg $28.95 / 100mg | Puratek Peptides 51% cheaper |
| Tirzepatide | $2.25/mg $135.15 / 60mg | $0.666/mg $39.95 / 60mg | Puratek Peptides 70% cheaper |
| 5-Amino-1MQ | $4.17/mg $41.65 / 10mg | $0.699/mg $34.95 / 50mg | Puratek Peptides 83% cheaper |
| MOTS-c | $2.32/mg $92.65 / 40mg | $0.749/mg $29.95 / 40mg | Puratek Peptides 68% cheaper |
| Glow Blend | $1.32/mg $92.65 / 70mg | $0.856/mg $59.95 / 70mg | Puratek Peptides 35% cheaper |
| Epithalon | $1.85/mg $92.65 / 50mg | $2.69/mg $26.95 / 10mg | Labsourced 31% cheaper |
| BPC-157 + TB-500 Blend | $5.48/mg $109.65 / 20mg | $2.60/mg $51.95 / 20mg | Puratek Peptides 53% cheaper |
| CJC/Ipa Blend | $6.71/mg $67.15 / 10mg | $2.60/mg $51.95 / 20mg | Puratek Peptides 61% cheaper |
| Tesamorelin | $6.80/mg $135.99 / 20mg | $2.75/mg $54.95 / 20mg | Puratek Peptides 60% cheaper |
| Melanotan II | $4.17/mg $41.65 / 10mg | $2.79/mg $27.95 / 10mg | Puratek Peptides 33% cheaper |
| Melanotan I | $5.01/mg $50.15 / 10mg | $2.79/mg $27.95 / 10mg | Puratek Peptides 44% cheaper |
| BPC-157 | $3.78/mg $75.65 / 20mg | $3.00/mg $29.95 / 10mg | Puratek Peptides 21% cheaper |
| PT-141 (Bremelanotide) | $4.17/mg $41.65 / 10mg | $3.15/mg $31.45 / 10mg | Puratek Peptides 24% cheaper |
| Semax | $4.17/mg $41.65 / 10mg | $3.30/mg $32.95 / 10mg | Puratek Peptides 21% cheaper |
| Selank | $4.17/mg $41.65 / 10mg | $3.30/mg $32.95 / 10mg | Puratek Peptides 21% cheaper |
| Retatrutide | $3.39/mg $203.15 / 60mg | $4.50/mg $44.95 / 10mg | Labsourced 25% cheaper |
| DSIP | $8.33/mg $41.65 / 5mg | $3.50/mg $34.95 / 10mg | Puratek Peptides 58% cheaper |
Neither vendor wins across the board, which is the main takeaway. Labsourced is cheaper on 4 of the 25 shared compounds and Puratek Peptides on 21. 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: Labsourced lists around 42 compounds we track versus 30 at Puratek Peptides. Outside the 25 overlap, only one of them will stock what you need.
Labsourced — code Glowlab for 15% off. Puratek Peptides — code pepstracker 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.
Puratek Peptides is cheaper on 21 of the 25 peptides both vendors stock, Labsourced on 4. Across the compounds where they differ, that is 84% in Puratek Peptides's favour. On average cost-per-milligram, Puratek Peptides comes out roughly 29% lower. Neither wins everything, so check the specific compound you need.
Labsourced uses code Glowlab for 15% off, and Puratek Peptides uses pepstracker 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 25 compounds. Labsourced lists roughly 42 tracked compounds and Puratek Peptides lists about 30. 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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