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Best Price
Cheapest · 10mg
$80.00
$8.00/mg at AMP Peptides
Buy at AMP Peptides →Compare all 23 sources ↓peptide23 sources in stock
LL-37
Cathelicidin Antimicrobial Peptide
Endogenous antimicrobial peptide. Immune research compound.
Antimicrobial researchImmune research
For research use only · Not for human consumption
/ compare by size
Every source for LL-37
Affiliate disclosure: purchases through links below may earn us a commission. Rankings are never sold — methodology · full disclosure
Size:
21 sources for 5mg·cheapest $42.99 at AMC Essentials·$8.60/mg
Rank
Source
Trust Score
Price
$/mg
Buy
#1
AMC EssentialsBEST
★ 4.6
$42.99
$8.60/mg
#2
Atomik Labz
★ 4.7
$77.00
$15.40/mg
#3
Solyn Peptides
★ 4.5· price unverified
$64.79
$12.96/mg
#4
Peptira
★ 4.6· price unverified
$65.32
$13.06/mg
#5
Peppy
★ 4.7· price unverified
$86.58
$66.10
$13.22/mg
#6
Peptidology
★ 4.8· price unverified
$69.30
$13.86/mg
#7
Felix Chemical Supply
★ 4.5· price unverified
$73.13
$14.63/mg
#8
AlgoRX
★ 4.7· price unverified
$104.63
$77.77
$15.55/mg
#9
Renova Peptides
★ 4.6· price unverified
$83.41
$16.68/mg
#10
Solution Peptides
★ 4.6· price unverified
$83.53
$16.71/mg
#11
Modified Aminos
★ 4.5· price unverified
$108.55
$90.16
$18.03/mg
#12
Purus Peptides
★ 4.7· price unverified
$93.21
$18.64/mg
#13
EZ Peptides
★ 4.7· price unverified
$97.03
$19.41/mg
#14
RetaOneLabs
★ 4.7· price unverified
$98.48
$19.70/mg
#15
Lab Sourced
★ 4.7· price unverified
$101.01
$20.20/mg
#16
Flawless Compounds
★ 4.7· price unverified
$128.35
$102.97
$20.59/mg
#17
Glow Aminos
★ 4.5· price unverified
$128.32
$109.09
$21.82/mg
#18
Ion Peptide
★ 4.6· price unverified
$112.00
$22.40/mg
#19
Molecular Solutions
★ 4.7· price unverified
$112.88
$22.58/mg
#20
Southern Aminos
★ 4.6· price unverified
$152.67
$115.97
$23.19/mg
#21
Omegamino
★ 4.5· price unverified
$117.94
$23.59/mg
#22
LA Peptides
★ 4.6· price unverified
$67.88
$13.58/mg
#23
Valor Peptides
★ 4.8· price unverified
$106.83
$21.37/mg
🏆Our pick for LL-37
Ascension Peptides
10mg · USA · Card / Crypto / Zelle
- ✓Third-party tested (Janoshik)
- ✓COAs provided — Per-batch core, quarterly bonus
- ✓Best $/mg in stock right now
- ✓4.8★ community rating
Also solid
/ research index
The research base
Research Maturity
★★★★☆
4/5 — Volume of studies
Evidence Strength
★★★★☆
4/5 — Quality of evidence
Extensive research on antimicrobial and immune-modulatory effects.
/ mechanism of action
How it works
Antimicrobial activity, immune modulation.
/ research dosing
Common research protocols
Range
100-500 mcg/day
Frequency
Once daily
Route
Subcutaneous
Cycle
4-8 weeks
Research notes
Cathelicidin antimicrobial peptide. Limited human dosing data — most protocols extrapolate from animal models.
References
FOR RESEARCH USE ONLY. Doses listed are compiled from published research literature, FDA-approved drug labels, and well-documented research community practice. Not medical advice.
/ standalone use
As a solo compound
Standalone use is standard.
/ side effects
What to know
Generally well-tolerated.
/ timeline
Realistic expectations
Variable depending on research application
FOR RESEARCH USE ONLY. LL-37 is intended for laboratory research and not for human consumption.