For laboratory research use only.
BPC-157 and TB-500 show up side by side in many research catalogs because they are both small peptides studied in tissue-biology models—not because they are the same molecule. Physical presentations (lyophilized vial, spray, gel, capsules) change how a material is supplied; they do not rewrite sequence identity.
BPC-157
BPC-157 is a synthetic 15-amino-acid peptide derived from a gastric protein fragment. Review-level work associated with Sikiric and colleagues discusses cytoprotective and wound-healing model themes across soft-tissue and vascular contexts (BPC 157 and wound healing; BPC 157 and angiogenic growth factors). Those papers are preclinical and mechanistic in orientation. They do not convert a research listing into a clinical therapy narrative.
TB-500 and thymosin beta-4
Thymosin beta-4 is a 43-residue actin-binding protein whose β-thymosin/WH2 module sequesters G-actin and participates in cytoskeletal dynamics (β-thymosin/WH2 multifunctionality; β-thymosin/WH2 fold). “TB-500” is widely used as a research-trade name for a synthetic peptide modeled on an active region of thymosin beta-4, not as proof of identity with the full-length protein. Sequence confirmation is required before equating a TB-500 lot with full thymosin beta-4 used in a methods paper.
Formats as presentations, not new pharmacology
Lyophilized vials, sprays, gels, and capsules are different physical forms. Comparative work should state which presentation was used because matrix and unit definition can differ. A gel study is not automatically comparable to a vial-based cell assay even when both name BPC-157.
Explicit SARMs stocks these presentations for laboratory research, including the BPC-157 / TB-500 20mg lyophilized blend and the BPC-157 / TB-500 topical gel.
Blends
Combined BPC-157 / TB-500 materials intentionally mix two sequences. Results from a blend arm cannot be filed as if only one peptide were present. Multi-peptide blends that also include GHK-Cu or KPV are different products again.
Sources
- Stable Gastric Pentadecapeptide BPC 157 and Wound Healing. (Front Pharmacol, 2021, PMID 34267654)
- BPC 157 and Standard Angiogenic Growth Factors. Gastrointestinal Tract Healing, Lessons from Tendon, Ligament, Muscle and Bone Healing. (Curr Pharm Des, 2018, PMID 29998800)
- Multifunctionality of the beta-thymosin/WH2 module: G-actin sequestration, actin filament growth, nucleation, and severing. (Ann N Y Acad Sci, 2010, PMID 20536449)
- The beta-thymosin/WH2 fold: multifunctionality and structure. (Ann N Y Acad Sci, 2007, PMID 17468236)
See every format in one place on our BPC-157 and TB-500 for sale collection.