Lab Tested

HPLC · COA included

Made In USA

Manufactured & shipped

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99% Purity

Verified every batch

IGF-1 LR3

Muscle Growth & Recovery

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In Stock

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HPLC Purity

≥ 99%

Identity — Mass Spec

Confirmed

Total Impurities

≤ 1.0%

View Certificate: COA-2609080283

Every batch independently third-party lab tested

Endotoxin (LAL)

< 0.5 EU/mg

Sterility

Pass

Heavy Metals

< 10 ppm

View Certificate: COA-2609080283

Every batch independently third-party lab tested

Lab Tested

HPLC · COA included

Made In USA

Manufactured & shipped

Free Discreet Shipping

Ships same business day

99% Purity

Verified every batch

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IGF-1 LR3 Overview

Each vial contains 1 mg of highly pure IGF-1 LR3.

IGF-1 LR3 (Insulin-like Growth Factor 1 Long Arg3) is a synthetic derivative of IGF-1, a naturally occurring protein involved in growth, development, and cellular repair. While it closely resembles the body’s own IGF-1, it has been structurally modified with an arginine substitution at position 3. This change extends its half-life, allowing it to remain active in the bloodstream for longer periods of time.

As a result, IGF-1 LR3 exerts prolonged biological effects, supporting processes such as muscle growth, fat metabolism, and tissue recovery. Its ability to enhance cellular repair and regeneration has made it a compound of interest in performance, recovery, and longevity research.

Research Use Only
All products are intended solely for laboratory research and are not for human or animal consumption. By purchasing, the buyer agrees to use these products in compliance with all applicable laws.
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Frequently Asked Questions
Everything you need to know about our products and processes
Each vial contains exactly what’s shown on the label. For example, a 10mg vial has exactly 10mg of lyophilized peptide. Researchers can divide it into smaller portions—like four 2.5mg measurements—but the total amount remains 10mg.
Yes, every single batch is third-party tested using HPLC and mass spectrometry to ensure 99%+ purity. We provide a Certificate of Analysis (COA) for every product.
In lyophilized powder form, peptides stay stable for up to 2 years. After reconstitution, it should be refrigerated and is generally stable for up to 2 months.
Lyophilized peptides should be stored away from heat and light. Once reconstituted, they must be refrigerated to maintain stability and efficacy.
All orders ship directly from our US facility. Orders placed before 1 PM EST Monday-Friday are dispatched the same day.
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