MOTS-c vs TB-500

A detailed comparison to help you understand the differences and choose the right peptide for your research goals.

MOTS-c

MOTS-c (Mitochondrial Open Reading Frame of the Twelve S rRNA type-c) is a mitochondrial-derived peptide that plays a key role in metabolic regulation and has emerged as a significant longevity research target.

Full details →

TB-500

Thymosin Beta-4 (TB-500) is a naturally occurring peptide present in almost all human and animal cells. It plays a crucial role in tissue repair and regeneration.

Full details →

Side-by-Side Comparison

Aspect	MOTS-c	TB-500
Dose Range	5 mg–10 mg	2 mg–2.5 mg
Frequency	Less than daily	Less than daily
Cycle Length	8–12 weeks	4–8 weeks
Route	subcutaneous	subcutaneous
Mechanism	Activates AMPK pathway, enhances glucose uptake in skeletal muscle, improves insulin sensitivity, and regulates mitochondrial function. Acts as a metabolic hormone affecting whole-body energy homeostasis.	TB-500 promotes cell migration and differentiation, regulates actin (a cell-building protein), and reduces inflammation. It supports the formation of new blood vessels and wound healing.
Typical Dosage	Research protocols typically use 5-10mg administered subcutaneously several times per week. Optimal dosing not yet established.	Research protocols typically use 2-2.5mg twice weekly during the loading phase, followed by maintenance dosing of 2mg every 2 weeks.
Administration	Subcutaneous injection. Often combined with exercise protocols as it enhances exercise capacity and metabolic adaptation.	Administered via subcutaneous or intramuscular injection. Some protocols suggest injection near injury sites.
Side Effects	Limited human data. Animal studies show good tolerability. May affect energy levels and exercise performance.	May cause temporary fatigue, headache, or localized irritation at injection sites.
Best For	Muscle Growth Fat Loss Anti-Aging & Longevity	Muscle Growth Recovery & Healing