THR-123 Alternatives

Explore peptides similar to THR-123. Compare mechanisms, effects, and find the best alternative for your research.

Original

THR-123

Metabolic

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An orally administered cyclized small peptide that mimics bone morphogenetic protein 7 (BMP-7) signaling through the ALK3 receptor. Originally developed for kidney fibrosis where it reversed established fibrosis in animal models. A 2025 Nature Communications study from the Diabetes Research Institute showed THR-123 regenerated insulin-producing pancreatic beta cells and reversed diabetes in preclinical models. No human clinical trials yet.

Similar Peptides

SLU-PP-332

Metabolic

A synthetic small molecule developed at Saint Louis University that activates estrogen-related receptors (ERRs), mimicking the metabolic effects of aerobic exercise. Technically not a peptide but a small organic molecule (MW 290.32), widely discussed in the peptide community as an "exercise mimetic" that boosts fat oxidation, endurance, and mitochondrial function without stimulant effects.

Pancragen

Metabolic

A synthetic tetrapeptide (Lys-Glu-Asp-Trp) bioregulator originally isolated from bovine pancreatic cells. Developed at Russia's St. Petersburg Institute of Bioregulation and Gerontology, it directly interacts with DNA to regulate pancreatic gene expression. Studied for age-related metabolic disturbances including type 2 diabetes.

TB-500

Healing

A synthetic 17-amino acid fragment of Thymosin Beta-4 (TB-4). Unlike TB-4, TB-500 has a longer half-life (~2-4 days vs ~2 hours) and is the active region responsible for tissue repair and cell migration. Note: Many vendors mislabel TB-4 as 'TB-500' in premixed products.

Retatrutide

Weight Loss

A triple agonist targeting GLP-1, GIP, and glucagon receptors. Phase 3 trials show up to 28.7% weight loss (71 lbs average), the highest of any obesity drug. Expected FDA approval late 2026 to early 2027.

KLOW Blend

Peptide Blend

An advanced multi-peptide blend combining BPC-157 (10mg), TB-500 (10mg), GHK-Cu (50mg), and KPV (10mg) totaling 80mg per vial. Evolution of the Glow stack with added KPV for enhanced anti-inflammatory and gut health benefits.

GHRP-6

Growth Hormone

One of the first synthetic GH secretagogues developed. Strongly stimulates GH release and significantly increases appetite through ghrelin receptor activation.

All Metabolic Peptides

Pancragen

A synthetic tetrapeptide (Lys-Glu-Asp-Trp) bioregulator originally isolated from bovine pancreatic cells. Developed at Russia's St. Petersburg Institute of Bioregulation and Gerontology, it directly interacts with DNA to regulate pancreatic gene expression. Studied for age-related metabolic disturbances including type 2 diabetes.

SLU-PP-332

A synthetic small molecule developed at Saint Louis University that activates estrogen-related receptors (ERRs), mimicking the metabolic effects of aerobic exercise. Technically not a peptide but a small organic molecule (MW 290.32), widely discussed in the peptide community as an "exercise mimetic" that boosts fat oxidation, endurance, and mitochondrial function without stimulant effects.

Quick Comparison

PeptideCategoryFDA StatusAction
THR-123MetabolicNot ApprovedOriginal
SLU-PP-332MetabolicNot ApprovedCompare →
PancragenMetabolicNot ApprovedCompare →
TB-500HealingNot ApprovedCompare →
RetatrutideWeight LossNot ApprovedCompare →