KPV vs LL-37
KPV: Anti-inflammatory tripeptide. LL-37: Human antimicrobial peptide. Per milligram, KPV is cheaper right now (USD 0.500 vs USD 1.05 at the cheapest tested vendor). LL-37 has stronger published evidence (grade B vs C). Prices per mg compare cost, not effect: the amounts used in studies differ between compounds.
KPV
The last three amino acids of alpha-MSH (lysine-proline-valine). Calms inflammatory signaling in cell and animal studies, notably in models of colitis and skin inflammation.
- What it is
- Anti-inflammatory tripeptide
- Category
- Inflammation & immune
- Status
- Not approved. Research use only.
- Cheapest
- USD 0.500 per mg (Uther)
- Median price
- USD 3.14 per mg
- Vendors
- 78 independently tested, 31 with a lab report
- Research
- Grade C: Mostly animal studies (9 papers)
- Studied as
- tested only in animals or cells
LL-37
The only human cathelicidin: kills bacteria, fungi and some viruses and helps wound healing, but can also drive inflammation at high levels.
- What it is
- Human antimicrobial peptide
- Category
- Inflammation & immune
- Status
- Not approved. Research use only.
- Cheapest
- USD 1.05 per mg (Mai Peptide)
- Median price
- USD 7.04 per mg
- Vendors
- 48 independently tested, 5 with a lab report
- Research
- Grade B: Some human evidence (8 papers)
- Studied as
- studied in people
- Reported side effects
- Wart-like / keratoacanthoma-like skin lesions after injection into tumors
Cheapest tested vendors for KPV and LL-37
Lowest price per milligram at up to three independently tested vendors each. Rankings are by price only; open a vendor to see its lab results.
| Peptide | Vendor | Per mg |
|---|---|---|
| KPV | Uther | USD 0.500 |
| Huaian Dinglin Trading | USD 0.550 | |
| Shenzhen Loga Tech LG LOGA | USD 0.550 | |
| LL-37 | Mai Peptide | USD 1.05 |
| BeiBangAn | USD 1.50 | |
| Huaian Dinglin Trading | USD 1.50 |
Questions people ask
What is the difference between KPV and LL-37?
KPV: Anti-inflammatory tripeptide. LL-37: Human antimicrobial peptide. Per milligram, KPV is cheaper right now (USD 0.500 vs USD 1.05 at the cheapest tested vendor). LL-37 has stronger published evidence (grade B vs C). Prices per mg compare cost, not effect: the amounts used in studies differ between compounds.
Which is cheaper, KPV or LL-37?
KPV is cheaper per mg: USD 0.500 for KPV vs USD 1.05 for LL-37 at the cheapest independently tested vendor. The median listing is USD 3.14 per mg for KPV and USD 7.04 per mg for LL-37.
Which is easier to find from a tested vendor, KPV or LL-37?
KPV is sold by more independently tested vendors: 78 list KPV (31 publish a lab report for it) and 48 list LL-37 (5 with a lab report).
Which has more published research, KPV or LL-37?
KPV is graded C (mostly animal studies) from 9 papers and LL-37 is graded B (some human evidence) from 8 papers. Grades count studies of the exact compound only; they describe how much evidence exists, not which one is better.
Are KPV and LL-37 FDA approved?
KPV: Not approved. Research use only. LL-37: Not approved. Research use only.