hCAP18 fragment

Also known as hCAP18 fragment — this name points to LL-37 in our directory.

About LL-37

The only human cathelicidin—a host-defense peptide with antimicrobial and immune-modulating roles in the gut and skin.

LL-37 kills bacteria and modulates inflammation at mucosal surfaces. Low levels are linked to dysbiosis and psoriasis. Research explores it for IBD and wound healing. Not available as a consumer product; studied in academic and clinical trials.

Read the full peptide profile →

Where you will see hCAP18 fragment

hCAP18 fragment is a prescription drug brand—not a cosmetic INCI name or bulk research powder. The active molecule is LL-37. Dosing, indications, and side effects come from the FDA label and your clinician, not peptide forum stacks.

Other names

Cathelicidin Human antimicrobial peptide hCAP18 fragment

Common questions

Is hCAP18 fragment the same as LL-37?

Yes. hCAP18 fragment is a brand or nickname that refers to LL-37 in our directory—the same active molecule, different packaging or marketing name.

What is LL-37?

The only human cathelicidin—a host-defense peptide with antimicrobial and immune-modulating roles in the gut and skin. LL-37 kills bacteria and modulates inflammation at mucosal surfaces. Low levels are linked to dysbiosis and psoriasis. Research explores it for IBD and wound healing. Not available as a consumer product; studied in academic and clinical trials.

How do I find hCAP18 fragment on a label?

No. hCAP18 fragment is a prescription medicine dispensed through pharmacies with a clinician—not a peptide powder or cosmetic serum you buy by alias alone.