Research Comparison
LL-37 (Human Cathelicidin) vs Thymosin Alpha 1
A side-by-side research comparison of LL-37 (Human Cathelicidin) and Thymosin Alpha 1 drawn from Cedar Peptides' peptide database records.
LL-37 (Human Cathelicidin)
LL-37 is the only known human cathelicidin antimicrobial peptide, consisting of 37 amino acids and derived from the precursor protein hCAP18. It plays a critical role in innate immunity, exhibiting broad-spectrum antimicrobial activity against bacteria, viruses, and fungi while also modulating inflammatory responses and promoting tissue repair. It is most commonly studied in topical applications for wound healing, where it provides both antimicrobial protection and regenerative support. Clinical and experimental data show significant improvements in chronic wound healing, though systemic use remains less well characterized.
Thymosin Alpha 1
Thymosin Alpha 1 (Ta1/Thymalfasin/Zadaxin) is a synthetic 28-amino acid peptide identical to the naturally occurring thymic hormone. It has been extensively studied across numerous clinical trials and is approved in multiple countries for immune-related conditions. Ta1 demonstrates a strong safety profile while providing broad immunomodulatory effects. Injectable Ta1 exhibits high bioavailability and activates multiple immune pathways, including T-cell maturation, NK cell activation, and dendritic cell modulation, making it one of the most clinically validated immunomodulatory peptides available.
Reading a comparison
A comparison places two records side by side; it does not merge them. Each description above is drawn from that compound's own record, and the two were not necessarily characterised by the same methods, at the same time, or to the same level of detail. Before comparing any attribute, it is worth establishing that both records describe the substance you think they describe — names are not identifiers, and two entries sharing a name can differ in salt form, stereochemistry or the convention used to state a mass. Where a figure carries no method beside it, the comparison is between two reported numbers rather than between two measurements.