Peptides in Gut & Mucosal-Barrier Research
Gut-model literature pairs repair peptides with α-MSH-derived anti-inflammatory fragments. Specs, reported ranges and lot documentation for each compound.
By PX1 Research Team · August 4, 2026
Peptides in Gut & Mucosal-Barrier Research
Gut-model literature pairs repair peptides with α-MSH-derived anti-inflammatory fragments.
| Compound | Class | Lowest reported study amount | Vial sizes |
|---|---|---|---|
| BPC-157 | synthetic pentadecapeptide derived from gastric juice protein BPC | 200–250 mcg | 5 mg / 10 mg |
| KPV | C-terminal tripeptide of α-MSH | 200 mcg | 10 mg |
| KLOW Blend (BPC-157 + TB-500 + GHK-Cu + KPV) | four-peptide research blend | one reconstituted unit | 80 mg blend vial |
| LL-37 | human cathelicidin antimicrobial peptide | 100 mcg | 5 mg |
Compound-by-compound notes
BPC-157
BPC-157 is a synthetic pentadecapeptide derived from gastric juice protein BPC studied in tissue-repair and gastrointestinal models. Standard preparation is 5 mg + 2 mL = 2.5 mg/mL (250 mcg = 10 units). Reported arms:
| Study arm | Reported amount | Cadence |
|---|---|---|
| Low arm | 200–250 mcg | daily |
| Mid arm | 500 mcg | daily |
| High arm | 500 mcg | twice daily |
Product page: BPC-157.
KPV
KPV is a C-terminal tripeptide of α-MSH studied in inflammatory-signalling and mucosal research. Standard preparation is 10 mg + 2 mL = 5 mg/mL. Reported arms:
| Study arm | Reported amount | Cadence |
|---|---|---|
| Low arm | 200 mcg | daily |
| Mid arm | 500 mcg | daily |
Product page: KPV.
KLOW Blend (BPC-157 + TB-500 + GHK-Cu + KPV)
KLOW Blend (BPC-157 + TB-500 + GHK-Cu + KPV) is a four-peptide research blend studied in repair plus inflammatory-signalling research. Standard preparation is 80 mg blend + 3 mL bacteriostatic water. Reported arms:
| Study arm | Reported amount | Cadence |
|---|---|---|
| Standard arm | one reconstituted unit | daily in blend models |
Product page: KLOW Blend (BPC-157 + TB-500 + GHK-Cu + KPV).
LL-37
LL-37 is a human cathelicidin antimicrobial peptide studied in innate-immunity research. Standard preparation is 5 mg + 2 mL = 2.5 mg/mL. Reported arms:
| Study arm | Reported amount | Cadence |
|---|---|---|
| Standard arm | 100 mcg | daily |
Product page: LL-37.
How researchers evaluate material before running anything
Purity claims mean nothing without a lot-specific COA showing an HPLC chromatogram, LC-MS identity and endotoxin results. PX1 publishes all three at /coa.
How PX1 documents every lot
Every PX1 lot ships with HPLC purity, LC-MS identity, residual solvent, moisture (Karl Fischer), sterility and endotoxin data. Lot documentation is published at /purity-reports, /endotoxin-reports and /coa. Synthesis, purification, lyophilization and vial fill happen in U.S. facilities — see /manufacturing-process.
Research use only. PX1 Research supplies compounds for laboratory and in-vitro research. Nothing here is medical advice, a dosing recommendation, or an offer for human or veterinary use. Figures cited are reported from published laboratory literature.