IGF-1 LR3 - 1mg Vial
Lot #2026-03-001-W
Verified Purity
Research Use Only: IGF-1 LR3 is supplied exclusively for controlled in vitro laboratory research. Purchase, handling, and use are restricted to qualified researchers, laboratory professionals, and authorized research institutions.
. ships today if ordered before 3pm ET

Secure Checkout
On orders over $200
Money-back guarantee
🚚 Get 2 day shipping when you spend $250 or More
🚚 Free shipping over $200
🔄 60-day money back
🔒 SSL Secure
📦 Discreet packaging

Every batch verified by accredited US labs

Every order fully covered

No questions asked
Each batch of the KISSPEIN formula is verified through independent analytical testing to confirm identity, 99% purity, and structural consistency.
Lot #2026-03-001-W
Verified Purity
IGF-1 LR3 is a modified research peptide based on insulin-like growth factor-1, investigated in controlled in-vitro systems for growth-factor signalling, protein synthesis, metabolic pathways, and receptor-linked cellular responses.
IGF-1 LR3 retains receptor-binding characteristics associated with native IGF-1 while incorporating sequence modifications designed to reduce interactions with IGF-binding proteins. These characteristics support its use in controlled laboratory studies examining sustained growth-factor activity and downstream biological signalling.
Receptor-Linked Research
Modified Interaction Profile
Cellular Process Investigation
Laboratory Pathway Research
The Long R3 variant incorporates a 13-amino-acid extension together with an arginine substitution at position 3. These sequence changes are used to investigate altered IGF-binding protein interactions and sustained experimental activity compared with native IGF-1.
IGF-1 LR3 is supplied as a white to off-white lyophilised research solid in a 1mg vial. Each batch undergoes identity, quality, purity, and appearance checks before release for controlled laboratory use.
IGF-1 LR3 is a modified insulin-like growth factor-1 research peptide investigated in controlled in-vitro systems for growth-factor signalling, IGF-binding protein interactions, protein synthesis, metabolic pathways, and receptor-linked cellular responses.
IGF-1 LR3 research focuses on modified growth-factor behaviour, receptor-linked signalling, IGFBP interaction profiles, protein synthesis pathways, and metabolic responses in controlled non-clinical laboratory systems.
IGF-1 LR3 is a modified insulin-like growth factor-1 research peptide containing a 13-amino-acid extension and an arginine substitution at position 3.
It is investigated in controlled in-vitro systems for growth-factor signalling, IGFBP interactions, protein synthesis, metabolic pathways, and receptor-linked cellular responses.
IGF-1 LR3 is supplied as a 1mg lyophilised powder with a white to off-white appearance.
Dry vials should be protected from light and moisture. After laboratory reconstitution, store at 2–8°C, protect from light, and avoid repeated temperature cycling
IGF-1 LR3 is supplied exclusively for controlled in vitro laboratory research. Purchase, handling, and use are restricted to qualified researchers, laboratory professionals, and authorized research institutions.
This product is sold exclusively for in vitro research and educational purposes. It is not intended for human or veterinary use, and is not intended to diagnose, treat, cure, or prevent any medical condition or disease. All clinical trial data, research findings, and scientific information presented on this page are sourced from peer-reviewed academic publications. This content is provided for educational reference only and does not constitute medical advice, product claims, or treatment recommendations. By purchasing this product, the buyer confirms they are a qualified researcher and will use it strictly in accordance with all applicable federal, state, and local laws and regulations. GMR Peptides assumes no liability for any misuse of this product outside of a research context.
This website contains products for research use only. By entering, you confirm that you are 21 years of age or older.
Enter your email to unlock our exclusive Buy 2, Get 1 Free or Buy 4, Get 2 Free offer on eligible research supplies.
By clicking "I Agree", you acknowledge that all products are strictly for laboratory research purposes and are not for human consumption.
Your BAC Water has been added to cart. You can also add these research favorites below.