Selank vs HGH Fragment 176-191
Side-by-side comparison of key properties, dosing, and research.
Cognitive Enhancement
SelankFat Loss & Metabolic
HGH Fragment 176-191- Summary
- Selank is a synthetic heptapeptide analog of tuftsin developed in Russia. It is a potent anxiolytic that reduces anxiety and enhances cognitive function without sedation or addiction. It is approved for clinical use in Russia for anxiety disorders.
- 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.
- Half-Life
- Minutes (but effects persist for hours)
- ~30 minutes
- Admin Route
- SubQ, Intranasal
- SubQ
- Research
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- —
- Typical Dose
- 250–500 mcg
- 250–500 mcg
- Frequency
- 1–3 times daily
- 1–3 times daily
- Key Benefits
- Reduces anxiety without sedation
- Enhances memory and learning
- Improves focus and concentration
- Stabilizes mood
- Reduces physiological stress response
- May enhance motivation
- No addiction potential or withdrawal
- Fast-acting — effects within 20–30 minutes
- Approved clinically in Russia for anxiety disorders
- 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
- Side Effects
- Mild sedation at higher doses (paradoxical)
- Fatigue (rare)
- Irritability during discontinuation (uncommon)
- Injection site irritation
- Temporary lethargy
- Headache (rare)
- Nausea (rare)
- Stacks With
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