LL-37 5 mg vial
- RUO$38Listed price · deal not verifiedCOA tested Jun 16, 2026
- Peptide Plugs$60Listed priceCOA tested Oct 15, 2026
- Evolve Peptides$64.90Listed priceCOA tested Jan 21, 2026
LL-37 is a peptide placed in immune and inflammation research.
Also known as ll-37 · ll37
Current picks · Nov 14, 2026
Up to three of the lowest effective prices per exact product among vendors that passed the trust floor, were in stock and checked within 72 hours, and have a COA on file for that product and strength tested within 12 months. Affiliate relationships never affect picks or their order.
Same format. Same amount.
2 of 3 exact products have at least one pick. Vendor counts reflect the current price observations. Testing records for every vendor and strength: LL-37 COAs →
Historical market context
Historical market low and median per mg across recorded offers. These market summaries are separate from our exact-product comparisons.
History updated Sep 21, 2026. Vendor coverage, package sizes, product forms and promotions can vary over time. Use exact-product comparisons for current listed prices; historical market prices do not establish vendor trust.
| Date | Low /mg | Median /mg | Vendors | Offers |
|---|---|---|---|---|
| $1.87 | $9.00 | 38 | 45 | |
| $2.08 | $9.00 | 38 | 43 | |
| $5.40 | $10.00 | 22 | 26 | |
| $0.72 | $9.00 | 12 | 18 |
What it is
Ropocamptide is a human cathelicidin that inhibits viral replication and while also playing a role in host defense against infection. The listed molecular formula is C205H340N60O53. PepGrades separately preserves the catalog category because a chemical identity record does not establish a use, outcome, or product quality.
This label describes the available research record, not whether the compound is safe or effective for an individual.
Research context
5 registered studies were found under this name in the current review. Each study still needs to be checked for the exact compound identity, population, endpoints, and results.
Search indexed research for this compound ↗Market context
LL-37 is commonly sold or discussed for immune response and inflammation research. That describes market demand, not proof that the compound is safe or effective.
Market demand and online discussion do not establish product quality, safety, or effectiveness.Vendor directory
Grades describe the vendor record overall, not a test of every product. Lowest prices are effective single-package prices across formats; open a comparison for the exact product.
| Vendor | Grade | Offers | In stock | Lowest effective package |
|---|---|---|---|---|
| EZ Peptides | Grade A- | 1 | 1 | $78 · 10 mg vialObserved Nov 14, 2026 |
| Peptide Plugs | Grade A- | 1 | 1 | $60 · 5 mg vialObserved Nov 14, 2026 |
| Polaris Peptides | Grade A- | 1 | 1 | $125 · 10 mg vialObserved Nov 14, 2026 |
| Ascension Peptides | Grade A- | 1 | 1 | $78 · 10 mg vialObserved Nov 14, 2026 |
| Evolve Peptides | Grade A- | 1 | 1 | $64.90 · 5 mg vialObserved Nov 14, 2026 |
| Orbitrex Peptides | Grade A- | 1 | 1 | $44.99 · 5 mg vialObserved Nov 14, 2026 |
| Bulk Peptide Supply | Grade B+ | 1 | 1 | $20 · 5 mg vialObserved Nov 14, 2026 |
| Ameano Peptides | Grade B+ | 1 | 1 | $80 · 10 mg vialObserved Nov 14, 2026 |
| Oasis Peptides | Grade B+ | 1 | 1 | $65 · 10 mg vialObserved Nov 14, 2026 |
| Core Peptides | Grade B+ | 1 | 1 | $89 · 5 mg vialEarlier observation Oct 20, 2026 |
| Biolongevity Labs | Grade B | 1 | 1 | $94.97 · 5 mg vialObserved Nov 14, 2026 |
| Coffee and Peppers | Grade B | 1 | 1 | $49.99 · 5 mg vialEarlier observation Oct 4, 2026 |
| Paramount Peptides | Grade B | 2 | 2 | $75 · 5 mg vialObserved Nov 14, 2026 |
| RUO | Grade B | 1 | 1 | $38 · 5 mg vialObserved Nov 14, 2026 |
| NuLife Peptides | Grade B | 1 | 1 | $75 · 10 mg vialEarlier observation Oct 17, 2026 |
| Premier Bio Labs | Grade A- | 1 | 1 | $69.99 · 5 mg vialEarlier observation Sep 21, 2026 |
| AIO Peptides | Not graded | 1 | 1 | $36 · 5 mg vialObserved Nov 14, 2026 |
| Pura Peptides | Not graded | 1 | 1 | $45 · 5 mg vialObserved Nov 14, 2026 |
| Skye Peptides | Not graded | 1 | 1 | $74 · 5 mg vialObserved Nov 14, 2026 |
17 tracked vendors list LL-37 without a current offer: Southern Aminos (Grade A-), Alpha Peps (Grade B+), Peptide Crafters (Grade B+), RIVN Peptides (Grade B+), SaiyanMed (Grade B+), Simple Peptide (Grade B), Ion Peptides (Grade B), Chameleon Peptides (Grade B), Nationwide Peptides (Grade B+), Mile High Compounds (Grade B), Peptidology (Grade C), Swiss Chems (Grade C), American Peptide Research (Not graded), Atomik Labz (Not graded), Nuscience Peptides (Not graded), Planet Peptide (Not graded), Tydes (Not graded).
Sources and review
Last editorial review: Aug 30, 2026. Sources support the compound guide only and do not affect vendor grades.