Skip to main content

HGH Fragment 176-191 vs TB-500

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

HGH Fragment 176-191

HGH Fragment 176-191 is the fat-reducing portion of the growth hormone molecule. Unlike AOD-9604 (which has an additional tyrosine), this is the exact fragment of HGH responsible for lipolytic effects.

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

AspectHGH Fragment 176-191TB-500
MechanismMimics the lipolytic region of growth hormone, stimulating fat breakdown and inhibiting lipogenesis without affecting blood sugar or promoting growth. Works independently of GH receptors.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 DosageTypical dosing: 250-500mcg daily, often split into 2-3 doses. Usually administered on empty stomach, often with fasted cardio.Research protocols typically use 2-2.5mg twice weekly during the loading phase, followed by maintenance dosing of 2mg every 2 weeks.
AdministrationSubcutaneous injection. Best results when used fasted and combined with exercise. Avoid eating for 30 minutes post-injection.Administered via subcutaneous or intramuscular injection. Some protocols suggest injection near injury sites.
Side EffectsGenerally well-tolerated. May cause injection site irritation, temporary lethargy, or headache. Does not affect blood glucose significantly.May cause temporary fatigue, headache, or localized irritation at injection sites.
Best For

Key Differences

Unique to HGH Fragment 176-191:

Unique to TB-500:

Ready to Learn More?