BPC-157 is one of the most stable research peptides in common use — it resists degradation at gastric pH and remains active after oral administration, making it uniquely versatile for experimental protocols. This exceptional stability stems from its origin as a partial sequence of the body protection compound (BPC) found in gastric juice.
🧪 BPC-157 Physical Properties
| Property | Value |
|---|---|
| Sequence | GEPPPGKPADDAGLV |
| Molecular Weight | 1419.5 Da |
| Amino Acids | 15 |
| pI (Isoelectric Point) | ~3.5 |
| pH Stability Range | 2-9 (stable) |
| Solubility | Water >10 mg/mL |
🔬 Why BPC-157 Stability Matters for Research
BPC-157’s resistance to enzymatic degradation at acidic pH is directly tied to its pentadecapeptide structure — the proline-rich sequence creates conformational stability that most peptides of this size lack. This means BPC-157 remains intact under experimental conditions that would degrade other short peptides within minutes, opening up experimental routes (oral gavage, gastric administration) that aren’t viable for GLP-1 class peptides.
🧫 Recommended Reconstitution Protocols
- Standard: Sterile water or 0.9% saline — BPC-157 is freely soluble, no special solvents needed
- Concentration range: 1-5 mg/mL for most applications. Above 10 mg/mL, viscosity increases
- pH adjustment: Not typically required — BPC-157 is stable across pH 2-9 without buffering
- Filtration: 0.22 μm sterile filter for cell culture applications
- Aliquoting: Pre-aliquot into single-use volumes to avoid freeze-thaw degradation
📊 Quality Verification
- HPLC purity ≥98% (standard research grade)
- MS: 1419.5 ± 1 Da by MALDI-TOF or ESI-MS
- Peptide content by amino acid analysis if dosing precision is critical
- TFA content <1% by ion chromatography for sensitive cell-based work
❓ FAQ
Q: How long is reconstituted BPC-157 stable at room temperature?
A: BPC-157 shows remarkable room-temperature stability — studies document 7-14 days with minimal degradation at 20-25°C. For critical experiments, store at 2-8°C or aliquot and freeze at -20°C. BPC-157 is more forgiving than almost any other research peptide in this regard.
Q: Can BPC-157 be used in cell culture media?
A: Yes — BPC-157 is stable in standard cell culture media (DMEM, RPMI) at 37°C for 24-48 hours. Filter-sterilize after reconstitution and add to media at the desired concentration. Stability in serum-containing media is also documented.
Q: Does BPC-157 require special handling compared to other peptides?
A: No — BPC-157 is the most handling-tolerant research peptide in common use. Standard peptide handling (avoid repeated freeze-thaw, protect from light, use within stability window) is sufficient. Its gastric origin gives it stability properties that synthetic peptides typically lack.