PepsTracker › Vendors › S1 Labs vs Platinum Peptides
Updated August 2026 · 12 shared compounds · discount codes applied
S1 Labs is cheaper on 10 of the 12 shared peptides, Platinum Peptides on 2 — that is 83% of the 12 compounds where the two actually differ.
Averaged across every shared compound, S1 Labs runs about 30% 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+ | $0.106/mg $53.10 / 500mg | $0.117/mg $58.65 / 500mg | S1 Labs 9% 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 | $0.722/mg $28.90 / 40mg | S1 Labs 50% cheaper |
| BPC-157 | $2.97/mg $29.70 / 10mg | $1.68/mg $84.15 / 50mg | Platinum Peptides 43% cheaper |
| MOTS-c | $3.42/mg $34.20 / 10mg | $5.01/mg $50.15 / 10mg | S1 Labs 32% cheaper |
| SS-31 | $3.42/mg $34.20 / 10mg | $5.44/mg $54.40 / 10mg | S1 Labs 37% cheaper |
| Semax | $3.60/mg $35.99 / 10mg | $5.78/mg $28.90 / 5mg | S1 Labs 38% cheaper |
| Tesamorelin | $3.78/mg $37.80 / 10mg | $11.73/mg $58.65 / 5mg | S1 Labs 68% cheaper |
| BPC-157 + TB-500 Blend | $4.95/mg $49.50 / 10mg | $5.24/mg $62.90 / 12mg | S1 Labs 6% cheaper |
| Retatrutide | $6.84/mg $68.40 / 10mg | $16.83/mg $84.15 / 5mg | S1 Labs 59% cheaper |
| Cagrilintide | $7.20/mg $72.00 / 10mg | $16.83/mg $84.15 / 5mg | S1 Labs 57% 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 10 of the 12 shared compounds and Platinum Peptides on 2. 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 12 compounds we track versus 48 at Platinum Peptides. Outside the 12 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.
S1 Labs is cheaper on 10 of the 12 peptides both vendors stock, Platinum Peptides on 2. Across the compounds where they differ, that is 83% in S1 Labs's favour. On average cost-per-milligram, S1 Labs comes out roughly 30% 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 12 compounds. S1 Labs lists roughly 12 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 27 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.