Testagen vs Dermorphin
Side-by-side comparison of key properties, dosing, and research.
Anti-Aging & Longevity
TestagenRecovery & Repair
Dermorphin- Summary
- Testagen is a tetrapeptide bioregulator (Lys-Glu-Asp-Gly) developed by Professor Vladimir Khavinson, tissue-specific for the testes. It supports Leydig cell function, normalization of testosterone biosynthesis, and spermatogenic activity. Testagen is used in men's health protocols for age-related testosterone decline, male fertility support, and testicular anti-aging.
- Dermorphin is a naturally occurring heptapeptide opioid isolated from the skin of South American phyllomedusine frogs. It is one of the most potent endogenous mu-opioid receptor agonists known, approximately 30-40 times more potent than morphine by weight. Explored for pain management and fatigue modulation.
- Half-Life
- Short (minutes); sustained gene-regulatory effects
- Estimated 30-60 minutes (longer than endorphins due to D-Ala)
- Admin Route
- SubQ, Oral
- Subcutaneous (research), Intrathecal (research), Intranasal (research)
- Research
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- Typical Dose
- 10 mg per day
- Not established for human use; research doses vary widely
- Frequency
- Daily for 10–30 days
- Not established
- Key Benefits
- Supports endogenous testosterone synthesis via Leydig cell normalization
- Promotes spermatogenesis and sperm quality
- Anti-aging effects on testicular tissue
- May attenuate age-related testosterone decline
- Mechanistically distinct from TRT — does not suppress HPG axis
- Useful adjunct to Gonadorelin and Kisspeptin-10 in male hormonal protocols
- Supports male fertility without exogenous hormone replacement
- Potent analgesia superior to morphine on a per-weight basis
- May reduce perception of fatigue in high-intensity activity
- Longer-lasting than endogenous opioids due to D-amino acid substitution
- Research tool for mu-opioid receptor pharmacology
- Potential therapeutic application in refractory pain
- Side Effects
- Generally well tolerated
- Mild injection site reactions
- No significant endocrine disruption reported at standard doses
- High addiction and dependence potential (mu-opioid agonism)
- Respiratory depression at high doses
- Nausea, vomiting, constipation
- Sedation and cognitive impairment
- +2 more
- Stacks With
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