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The Roundup

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peptide comparison · healing & repair × metabolic

TB-500 vs Tirzepatide

Two compounds, mechanism by mechanism. Where they overlap, where they don't, and which vendors stock each.

§ 01

Mechanism

tb-500

TB-500

Thymosin Beta-4 fragment

Synthetic fragment of the naturally occurring thymosin beta-4. Researched for cell migration and tissue repair.

Full guide →
vs
tirzepatide

Tirzepatide

MounjaroZepbound

Dual GLP-1 / GIP receptor agonist. FDA-approved as Mounjaro (T2D) and Zepbound (obesity).

Full guide →
§ 02

Key facts

factTB-500Tirzepatide
category
·healing & repairmetabolic·
half-life
·—~5 days·
research dosing
·Research literature cites 2–5 mg twice weekly for 4–6 weeks.Research literature cites 2.5–15 mg weekly subcutaneous, escalated over 16+ weeks.·
trending
search demand
○68/10088/100●
vendors stocking
○12●
aliases
·Thymosin Beta-4 fragmentMounjaro · Zepbound·
§ 03

Use-case overlap

only tb-500
  • recovery
  • tissue repair
both

none

only tirzepatide
  • weight loss
  • type 2 diabetes
§ 04

Where to buy

tb-500
TB-500
1 verified vendor
Particle Peptides
See all vendors →
tirzepatide
Tirzepatide
2 verified vendors
Amino AsylumLimitless Life Nootropics
See all vendors →
§ 05

Sources

  1. [01]Thymosin beta 4 and its actin-binding partners· TB-500
  2. [02]Tirzepatide once weekly for the treatment of obesity (NEJM)· Tirzepatide
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