PepsTracker › Vendors › S1 Labs vs Platinum Peptides
Updated July 2026 · 11 shared compounds · discount codes applied
Platinum Peptides is cheaper on 7 of the 11 shared peptides, S1 Labs on 4 — that is 64% of the 11 compounds where the two actually differ.
Averaged across every shared compound, S1 Labs runs about 2% lower on cost per milligram. Both figures already include each vendor's discount code.
pepstracker10 (10% off)pepstracker15 (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 | S1 Labs | Platinum Peptides | Cheaper |
|---|---|---|---|
| NAD+ | $0.117/mg $58.49 / 500mg | $0.059/mg $58.65 / 1000mg | Platinum Peptides 50% cheaper |
| Bacteriostatic Water | $0.360/mg $3.60 / 10mg | $0.255/mg $7.65 / 30mg | Platinum Peptides 29% cheaper |
| GHK-Cu | $0.360/mg $36.00 / 100mg | $0.361/mg $28.90 / 80mg | S1 Labs 0% cheaper |
| SS-31 | $3.42/mg $34.20 / 10mg | $1.09/mg $54.40 / 50mg | Platinum Peptides 68% cheaper |
| MOTS-c | $3.42/mg $34.20 / 10mg | $1.25/mg $50.15 / 40mg | Platinum Peptides 63% cheaper |
| Retatrutide | $6.30/mg $62.99 / 10mg | $2.80/mg $84.15 / 30mg | Platinum Peptides 55% cheaper |
| Semax | $3.60/mg $35.99 / 10mg | $2.89/mg $28.90 / 10mg | Platinum Peptides 20% cheaper |
| BPC-157 + TB-500 Blend | $6.30/mg $62.99 / 10mg | $3.15/mg $62.90 / 20mg | Platinum Peptides 50% cheaper |
| Tesamorelin | $3.78/mg $37.80 / 10mg | $5.87/mg $58.65 / 10mg | S1 Labs 36% cheaper |
| Cagrilintide | $7.20/mg $72.00 / 10mg | $8.41/mg $84.15 / 10mg | S1 Labs 14% cheaper |
| IGF-1 LR3 | $62.99/mg $62.99 / 1mg | $73.31/mg $58.65 / 0.8mg | S1 Labs 14% cheaper |
Neither vendor wins across the board, which is the main takeaway. S1 Labs is cheaper on 4 of the 11 shared compounds and Platinum Peptides on 7. 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: S1 Labs lists around 18 compounds we track versus 48 at Platinum Peptides. Outside the 11 overlap, only one of them will stock what you need.
S1 Labs — code pepstracker10 for 10% off. Platinum Peptides — code pepstracker15 for 15% 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.
Platinum Peptides is cheaper on 7 of the 11 peptides both vendors stock, S1 Labs on 4. Across the compounds where they differ, that is 64% in Platinum Peptides's favour. On average cost-per-milligram, S1 Labs comes out roughly 2% lower. Neither wins everything, so check the specific compound you need.
S1 Labs uses code pepstracker10 for 10% off, and Platinum Peptides uses pepstracker15 for 15% 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. S1 Labs lists roughly 18 tracked compounds and Platinum Peptides lists about 48. 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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