About this product
IGF1-LR3 1mg is supplied at 1 mg/ 1 ml. [Per-product description to be added.]
Suggested use: Inject 0.05ml- 0.1ml daily
What It Does
Six Reasons Clinicians Recommend IGF-1 LR3
A synthetically engineered analog of Insulin-like Growth Factor-1 with a modified amino acid sequence that dramatically extends its half-life and potency. IGF-1 LR3 acts directly on peripheral tissues — muscle, bone, nerve, and fat — without requiring GH as an intermediary, making it one of the most direct anabolic and regenerative peptides available.
Natural IGF-1
Half-life of 10–20 minutes. Rapidly bound by IGF binding proteins (IGFBPs) that limit tissue availability. Requires GH stimulation for production. Cleared quickly before reaching full tissue effect.
IGF-1 LR3
Half-life of 20–30 hours. Engineered to resist IGFBP binding — dramatically increasing free IGF-1 availability in tissues. Acts directly without GH, producing sustained anabolic and regenerative effects throughout the day.
Accelerates Muscle Growth & Development
IGF-1 LR3 directly activates IGF-1 receptors in skeletal muscle — stimulating satellite cell proliferation, promoting muscle fiber hyperplasia (new fiber formation) alongside hypertrophy, and enhancing protein synthesis. Because it resists binding protein inactivation and has a 20–30 hour half-life, it maintains a sustained anabolic signal in muscle tissue that natural IGF-1 cannot sustain. This makes it particularly effective for individuals seeking lean muscle development alongside body composition optimization.
Accelerates Tissue Repair & Recovery
IGF-1 is a primary driver of tissue repair across multiple systems — stimulating collagen synthesis, accelerating wound healing, supporting cartilage and bone regeneration, and promoting the repair of damaged neural tissue. LR3's extended half-life means repair signaling is sustained throughout the recovery window rather than peaking briefly and clearing. This makes it highly relevant for post-surgical recovery, sports injuries, and conditions involving chronic tissue degradation.
Supports Fat Loss & Metabolic Efficiency
IGF-1 LR3 promotes lipolysis in adipose tissue — stimulating fat cells to release stored triglycerides for use as energy — while simultaneously driving glucose into muscle cells for fuel. This dual action improves the body's fuel partitioning, shifting energy metabolism toward fat oxidation and lean tissue support. The sustained receptor activation of LR3 maintains this metabolic shift throughout the day, supporting meaningful improvements in body composition over a treatment cycle.
Neuroprotection & Cognitive Support
IGF-1 receptors are expressed extensively throughout the central nervous system, where IGF-1 supports neuronal survival, promotes myelination, reduces neuroinflammation, and drives the production of BDNF and other neurotrophic factors. LR3's extended bioavailability allows sustained neuroprotective signaling — supporting cognitive function, protecting neurons from oxidative and inflammatory damage, and promoting the neural plasticity underlying learning and memory.
Supports Bone Density & Joint Health
IGF-1 is a critical regulator of bone metabolism — stimulating osteoblast activity for bone formation, enhancing calcium absorption, and promoting the deposition of bone mineral matrix. LR3's sustained tissue presence supports ongoing bone remodeling and density maintenance, making it relevant in protocols addressing age-related bone density decline, recovery from fractures, and joint health where cartilage matrix regeneration is needed alongside bone support.
Anti-Aging & Cellular Longevity
IGF-1 signaling plays a central role in the aging process — declining levels correlate with reduced muscle mass, impaired tissue repair, cognitive decline, and decreased physical resilience. Restoring IGF-1 signaling through LR3 addresses multiple hallmarks of aging simultaneously — supporting cellular protein synthesis, tissue maintenance, metabolic efficiency, and the regenerative capacity that declines as endogenous GH and IGF-1 levels fall through midlife and beyond.
Physician Supervision & Cycle-Based Dosing Required
Due to its potency and extended half-life, IGF-1 LR3 is used in cycle-based protocols under physician supervision — typically 4 to 6 week cycles with rest periods to prevent receptor desensitization. Dosing and cycle length are determined individually by your prescribing physician. IGF-1 LR3 can affect blood glucose levels and requires careful monitoring in individuals with insulin sensitivity concerns. Available with a valid consultation only.
* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Available with a valid physician consultation only.
Formulated by Dr. Sasson Moulavi
Every Lavi MD peptide is developed under the direction of Dr. Sasson Moulavi, the physician behind the brand. Formulations are built to clinical specification, not sourced from anonymous suppliers.
Dr. Moulavi earned his Doctor of Medicine from the University of Toronto and completed postgraduate training at McGill University in Montreal. He holds Board Certification in Anti-Aging Medicine and Bariatric Medicine, and is a member of the American Academy of Anti-Aging Medicine and the American Society of Bariatric Physicians. With over three decades of clinical experience in bariatric, family, and anti-aging medicine, he serves as Medical Director and prescribing physician for Lavi MD, overseeing formulation standards and clinical protocols.
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Why Lavi MD
Not All Peptide Brands Are Equal
Most peptide suppliers prioritize volume over patients. We were built differently — by a physician, for patients.
Brands / Suppliers
Medical Director on Staff
Sasson Moulavi, MD
Dispensing Physician · Chayim Therapeutics, LLC
West Palm Beach, FL
"Every product we offer is something I would prescribe to my own patients. Our formulations are designed for clinical outcomes — not marketing claims."
How We Operate
Built by a Physician, Not a Marketing Team
Lavi MD was founded under physician supervision. Every formulation, every dose, every protocol is reviewed by Dr. Moulavi before it reaches a patient — not outsourced to a contract manufacturer with no clinical input.
We Limit Shipping Days to Protect Your Product
We only ship Monday and Tuesday. That's a deliberate decision — it ensures your order arrives before the weekend and never sits in a carrier facility over two days without refrigeration. Most brands don't think that far ahead.
We Treat You Like a Patient, Not an Order Number
Our team includes clinical staff who understand what you're taking and why. If something goes wrong with your order — a warm shipment, a missing component, a question about your protocol — we fix it. No automated runaround.
Proud Members of the
American Peptide Association
The American Peptide Association is the leading industry body advancing the science, safety, and standards of peptide research. Our membership reflects our unwavering commitment to purity, transparency, and responsible sourcing — giving you full confidence in every product you purchase.
