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product overview
What IGF-1 LR3 is used for.
IGF-1 LR3 is a modified growth-factor analog studied for the growth-hormone axis and lean mass. Research looks at it for muscle growth, recovery, and body composition. It sits in the growth-and-performance space and is studied as a downstream growth-factor option rather than a GH-releasing one.
Peptide size
83 amino acids
Category
Growth & Performance
Size
1 mg
- Growth-and-performance research focused on lean mass and muscle growth.
- Recovery and body-composition protocols using growth-factor signaling.
- Studied as a downstream growth-factor option, not a GH-releasing one.
research note
IGF-1 LR3 is typically researched with conservative dosing because of its potency and long action. Track recovery, body composition, and tolerability before adjusting.
Avg purity
HPLC-tested batches
Guarantee
Shop with confidence
Cold-chain
Temperature-aware shipping
premium-grade research peptide
IGF-1 LR3
Modified growth factor analog. Lyophilized powder for reconstitution.
Build your order
Choose your vial
Reconstitute one vial at a time — many run an 8–12 week protocol.
Orders placed today are expected to arrive Jun 30 - Jul 2.
why researchers choose us
Quality you can trace.
Batch-tested purity
Every vial ships with a Certificate of Analysis from an independent third-party lab. No exceptions.
Fast shipping
Orders ship within 1-2 business days. Standard delivery in 3-7 business days across Europe.
60-day guarantee
Not satisfied? Get in touch within 60 days.
research context
What the research says.
“IGF-1 LR3 is studied as a modified growth-factor analog for its role in muscle growth and lean mass.”
“Lyophilized research peptides of this class are valued for stability and consistent reconstitution.”
“Independent third-party testing confirms batch-level purity before release.”
also researched
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