
LL-37
LL-37 is unusual in this library for having randomized human trials, all in chronic wound care, where closure measures were the endpoint. Its...
About:
The only human cathelicidin antimicrobial peptide, studied extensively for antimicrobial and wound-healing activity.
What does this peptide do?
Backed by human trial data, narrower than the strongest evidence. Research focuses on antimicrobial activity and wound healing.

Antimicrobial activity
The only human cathelicidin; studied for antimicrobial activity.

Wound healing
Also studied extensively for wound-healing activity.
Evidence grade
BHighest evidence grade among the graded claims: B. Grades reflect study strength, not benefit.
What are the benefits and side effects of this peptide
What research says it may help with
- LL-37 is unusual in this library for having randomized human trials, all in chronic wound care, where closure measures were the endpoint.
- Its antimicrobial activity is documented across laboratory work, and cathelicidin levels track vitamin D status in pooled human data.
Who should avoid it
- People who are pregnant or breastfeeding
- Children and adolescents
- Known hypersensitivity to peptide preparations
See the safety section. Absence of a flag is not evidence of safety.
A grade reflects evidence strength, not a recommendation to use this compound; a strong grade can attach to a harmful effect.

How to store this peptide
Typically sold as a lyophilized powder. Reconstituted solutions are perishable, need refrigeration, and require clean handling to avoid contamination.
Lyophilized storage
Store at −20 °C, protected from light.
Reconstituted storage
Keep at 2–8 °C and use within a short period. For longer storage, aliquot and freeze at −20 °C.
Storage Handling
Avoid repeated freeze–thaw cycles. Let the vial reach room temperature before opening.
Related research
Related research is coming soon for this peptide.


