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TB-4 vs TB4: What's the Difference? | Real Peptides
TB-4 and TB4 aren't two different compounds competing for your attention. They're the exact same 43-amino-acid peptide sequence. The hyphen versus no-hyphen distinction exists purely in supplier nomenclature, not in molecular structure. Both names refer to Thy
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- TB-4 and TB4 aren't two different compounds competing for your attention. They're the exact same 43-amino-acid peptide sequence. The hyphen versus no-hyphen distinction exists purely in supplier nomenclature, not in molecular structure. Both names refer to Thymosin Beta-4, the naturally occurring regenerative peptide first isolated from thymus tissue in the 1960s. The confusion multiplies when you factor in TB-500 (a synthetic fragment), Tβ4 (academic notation), and various supplier-specific abbreviations. But the underlying molecule remains constant.
- We've fielded this question from hundreds of research teams ordering peptides for wound healing, tissue regeneration, and inflammation studies. The naming inconsistency isn't a quality signal. It's a legacy issue from early peptide research where different labs used different shorthand. What matters is the amino acid sequence verification, not whether the label includes a hyphen.
- What's the difference between TB-4 and TB4?
- TB-4 and TB4 are identical. Both refer to the full-length 43-amino-acid Thymosin Beta-4 peptide. The hyphen is a stylistic variation with no molecular significance. The actual distinction researchers need to track is between full-length Thymosin Beta-4 (whether written TB-4, TB4, or Tβ4) and TB-500, the synthetic 7-amino-acid fragment derived from the active region. Full-length TB-4 exhibits broader systemic effects on tissue repair, angiogenesis, and cellular migration than the fragment.
- The real source of confusion isn't TB-4 versus TB4. It's conflating either term with TB-500 or assuming cosmetic name differences indicate formulation differences. They don't. A peptide labeled 'TB-4' from one supplier and 'TB4' from another should contain the same sequence. Verification lies in third-party testing, not nomenclature.