HGH Fragment 176-191 vs Thymagen
Side-by-side comparison of key properties, dosing, and research.
Fat Loss & Metabolic
HGH Fragment 176-191Immune Support
Thymagen- Summary
- HGH Fragment 176-191 (also known as AOD-9604) is a stabilized, modified fragment of the human growth hormone molecule corresponding to amino acids 176–191 with an addition of a tyrosine residue at the N-terminus. It retains HGH's fat-burning properties without the anabolic, diabetogenic, or IGF-1-stimulating effects.
- Thymagen is a dipeptide bioregulator (Glu-Asp) developed by Professor Vladimir Khavinson, tissue-specific for the thymus gland. It supports T-lymphocyte maturation, thymic function, and immune system normalization. As the thymus involutes with age (thymic atrophy), immune competence declines. Thymagen is used to support immune restoration, particularly in aging, post-illness recovery, and immunodeficiency states.
- Half-Life
- ~30 minutes
- Short (minutes); sustained gene-regulatory effects
- Admin Route
- SubQ
- SubQ, Oral
- Research
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- Typical Dose
- 250–500 mcg
- 10 mg per day
- Frequency
- 1–3 times daily
- Daily for 10–30 days
- Key Benefits
- Selective fat burning without anabolic side effects
- Reduces visceral and subcutaneous fat
- No insulin resistance or blood glucose disruption
- Does not stimulate IGF-1
- May support cartilage and bone repair (at higher doses)
- No effect on growth or organ size
- Supports thymic epithelial cell function and T-cell maturation
- May partially restore thymic output reduced by age-related atrophy
- Normalizes T-lymphocyte subpopulation balance
- Supports immune recovery after illness, surgery, or chemotherapy
- Anti-aging effects on thymic tissue
- Complementary to Thymosin Alpha-1 and Thymalin in immune protocols
- May improve vaccine responsiveness in older individuals
- Side Effects
- Injection site irritation
- Temporary lethargy
- Headache (rare)
- Nausea (rare)
- Generally well tolerated
- Mild injection site reactions
- No significant immunological adverse events reported
- Stacks With
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