Sermorelin vs Teriparatide
Well Studied vs Extensively Studied
synergistic Mechanism-based · 47% Sermorelin and Teriparatide work through complementary pathways. Growth hormone signaling supports tissue repair processes. A well-established combination in recovery protocols.
Molecular Data
Sermorelin Teriparatide
Weight 3,358 Da 4,118 Da
Half-life 10-12 minutes ~1 hour (subcutaneous); ~5 minutes (intravenous)
Chain 29 amino acids 34 amino acids
Type GHRH analog Recombinant PTH fragment
Key Benefits
Sermorelin
01 FDA-proven efficacy
02 Maintains natural GH pulsatile patterns
03 Preserves pituitary function
04 1.26kg lean mass increase documented in elderly
05 IGF-1 mediated anabolic effects
06 Allows natural feedback regulation
Teriparatide
01 FDA-approved for osteoporosis treatment
02 Actively builds new bone (anabolic)
03 Increases spine bone density by 5-9%
04 Reduces vertebral fracture risk by 65%
05 Reduces nonvertebral fractures by 35%
06 Works differently than antiresorptive drugs
07 Benefits seen within 3 months
08 Creates 'anabolic window' for bone growth
Dosing Protocols
Sermorelin
200-300mcg per dose (up to 500mcg for athletic performance) / Once daily at bedtime (aligns with natural GH pulse)
Anti-aging/Longevity 200-300mcg Once at bedtime
Athletic Performance 300-500mcg Once at bedtime
Body Composition 200mcg 5 days weekly
Combination Therapy 200mcg + GHRP Once daily
Teriparatide
20mcg daily (FDA-approved dose) / Once daily at same time each day
Osteoporosis treatment 20 mcg Once daily
Side Effects
Sermorelin
Injection site reactions (16.7% of patients - generally mild)
Nasal irritation (intranasal route)
Teriparatide
Injection site reactions
Nausea
Headache
Leg cramps
Dizziness
Joint pain
Contraindications
Active malignancy
Pituitary tumors
Pregnancy
Paget's disease of bone
Prior skeletal radiation therapy
History of skeletal malignancies
Metabolic bone diseases other than osteoporosis
Pre-existing hypercalcemia
Pregnancy
Research Evidence
Sermorelin Teriparatide
Status Well Studied Extensively Studied
References 5 studies 4 studies
Latest November 2024 —
FDA Approved No Yes
This comparison is for educational and research purposes only. Consult a healthcare professional before use.