Skin & wound healing research peptides
Skin and wound research is the area where peptide pharmacology has the longest cosmetic and pre-clinical history. GHK-Cu underpins decades of dermal-regeneration work; LL-37 covers antimicrobial defence and re-epithelialisation; BPC-157 contributes angiogenic effects in vascular wound beds.
Peptides in this category
TB-500
Thymosin Beta-4 fragment · Tβ4 17-23 · TB500
A synthetic peptide commonly described as a fragment of thymosin beta-4 incorporating the actin-binding 'LKKTETQ' motif. Studied for soft-tissue repair, wound healing, and cardiac tissue regeneration in animal models.
GHK-Cu
Copper tripeptide-1 · Glycyl-L-histidyl-L-lysine:copper(II)
A naturally occurring copper-binding tripeptide (Gly-His-Lys) complexed with Cu(II). Extensively studied in dermatology for wound healing, collagen synthesis, antioxidant defence, and hair-follicle stimulation.
Thymosin Beta-4
Tβ4 · TMSB4X · Full-length thymosin beta-4
A 43-amino-acid actin-sequestering peptide expressed in nearly all human cells. Distinct from the shorter TB-500 fragment; investigated in cardiac repair, corneal healing, and dermal regeneration.
LL-37
Cathelicidin LL-37 · hCAP-18 fragment
The only human cathelicidin antimicrobial peptide — a 37-residue cationic helix studied for direct antimicrobial action, wound healing, angiogenesis, and modulation of host immune responses.
Relevant research stacks
Tendon & Ligament Research Stack
Combine peptides studied for soft-tissue, vascular, and cellular-migration effects in tendon and ligament repair research.
Skin & Wound Healing Research Stack
Address dermal collagen synthesis, angiogenesis, and antimicrobial defence in pre-clinical wound-healing models.
Relevant comparisons
BPC-157 vs TB-500
BPC-157 and TB-500 are the two most-discussed research peptides in soft-tissue repair. They have overlapping interest areas — tendon, ligament, and vascular healing — but operate by different mechanisms and rest on quite different bodies of evidence.
GHK-Cu vs TB-500
GHK-Cu and TB-500 are sometimes grouped together as 'tissue-repair peptides', but the two operate at very different scales — GHK-Cu primarily as a transcriptional modulator of dermal fibroblasts, TB-500 primarily as a cell-migration peptide.
KPV vs LL-37
KPV and LL-37 occupy overlapping but distinct niches in the inflammation–antimicrobial peptide space. KPV is small, charge-neutral, and primarily anti-inflammatory; LL-37 is larger, cationic, and combines direct antimicrobial activity with broad immunomodulation.
Where to source research peptides for laboratory research
The following UK-based suppliers stock research-grade, lyophilised peptides for in-vitro and pre-clinical work. Purity and provenance vary; always request a Certificate of Analysis (CoA) and confirm cold-chain storage on arrival. None of the products linked below are approved for human use.
- PeptideAuthority.co.uk
UK-based research peptide supplier with batch certificates of analysis and >99% purity testing.
- PeptideBarn.co.uk
Wide catalogue of research-grade lyophilised peptides shipped from the UK, including bulk vials.