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Tested lot by lot · Published openly

Research peptides you can verify before you buy.

U.S. manufactured, independently tested, and every certificate is public. Look up any lot, see the results, then order with 2-day U.S. shipping.

✓ Trusted by 10,000+ researchers ✓ 148 certificates published ✓ Established 2025
SP Biolabs research vials
≥99% HPLC purity
COAs published by lot
2-day U.S. shipping
U.S. manufactured

Best sellers

What researchers reorder most, with each item's latest lab result.

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BPC - 157 BPC - 157
5mg · 10mg
Purity 99.88%
From $29.41
MOTS-c MOTS-c
10mg · 40mg
Purity >99%Full lab panel
From $41.17
Tesamorelin Tesamorelin
5mg · 10mg · 20mg
Purity >99%Full lab panel
From $70.58
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Tested for more than purity

Our newest certificates add endotoxin, heavy metal and microbial testing. Here's a real one.

All lab results
Tesamorelin 10mg
Lot 926U478M10Tested Oct 6, 2026ISO/IEC 17025 lab
View full COA (PDF)
Purity (HPLC)>99%Required: >99%Pass
Net content10.69mgLabel claim: 10mgPass
Endotoxin<1.25EU/mL · limit <5Pass
Heavy metals<LOQAs, Cd, Pb, Hg · LOQ 0.010 ppmPass
Microbial7 of 7Bacteria, yeast & moldPass
Heavy metals · ICP-MS, USP <233>
MetalResult
Arsenic<LOQ (0.010 ppm) · Pass
Cadmium<LOQ (0.010 ppm) · Pass
Lead<LOQ (0.010 ppm) · Pass
Mercury<LOQ (0.010 ppm) · Pass

Identity confirmed against a certified reference standard (USP <621>). Endotoxin by gel-clot, USP <85>.

Microbiological · USP <61>, <62>
OrganismResult / limit
Total aerobic count<10 CFU/g / <100 CFU/g
Yeast & mold<10 CFU/g / <10 CFU/g
SalmonellaNegative / Negative/1g
Staph. aureusNegative / Negative/1g
E. coliNegative / Negative/1g
Coliform<10 CFU/g / <10 CFU/g
Bile-tolerant gram-negative<10 CFU/g / <10 CFU/g

Full five-test panels so far: Tesamorelin, GLP-3 (RT), MOTS-c. Older lots list purity, identity and net content. See which lots have what

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Research use only. All products are strictly intended for laboratory research. Not for human or veterinary use. By purchasing, you confirm you are a qualified professional or institution.