IGF-1 LR3 (Receptor Grade) 1mg
$85.00
Size: 1mg
Contents: IGF-1 LR3 (Receptor Grade)
Form: Lyophilized powder
Molecular Formula: MFPAMP LSSLF VNGPR TLCGA ELVDA LQFVC GDRGF YFNKP TGYGS SSRRA PQTGIV DECCFR SCDLRR LEMY CAPLK PAKSA
Molecular Weight: 9,111 Da
Purity: >99%
SKU: G-igf-1-lr3
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IGF-1 LR3 (Receptor Grade) Peptide
IGF-1 LR3 (Long R3 Insulin-like Growth Factor-1) is a synthetic analogue of IGF-1 with a modified N-terminal extension, reducing IGF-binding protein affinity and increasing biological activity (Ibrahim et al., 2018). It promotes muscle hypertrophy, neuroprotection, and tissue repair by stimulating protein synthesis and cellular proliferation via the PI3K-Akt pathway (Yakar et al., 2002). IGF-1 LR3 exhibits extended half-life and enhanced receptor affinity, making it a potential candidate for muscle wasting disorders and injury recovery. However, concerns about mitogenic activity and cancer risk necessitate further clinical research.
References:
- Ibrahim, Y., et al. (2018). Frontiers in Endocrinology, 9, 95.
- Yakar, S., et al. (2002). Endocrine Reviews, 23(6), 787-820.

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John W (verified owner) –
Waited a month before I wrote this review because I wanted to give honest feedback. My lab rat loves the stuff. Highly recommend to stack with other peptides and/or SARMs to get a synergistic effect.
Thomas S (verified owner) –
GENX is the best and most trusted place for your Peptides and has the fastest delivery service I have ever seen. IGF-1 LR3 is a research peptide and being studied. So far studies on animals have discovered its potential to protect and increase muscle mass and improve endurance, and treat muscle or skeletal-related injuries. It is a possible treatment to help muscle wastage diseases.
Thanks GENX for high quality products
Thomas S.
Barbi (verified owner) –
IGF-1 LR3 (Receptor Grade) 1mg
Jeff S (verified owner) –
looking forward to research results !
Anonymous (verified owner) –
good
Anonymous (verified owner) –
fast shipment good stuff
Richard G. (verified owner) –
Perfect! Great company.
Anonymous (verified owner) –
Anonymous (verified owner) –
Great customer service to answer my questions and fast delivery
Darryl (verified owner) –
Egon K. (verified owner) –
Justin F. (verified owner) –
Quality of the Peptide is outstanding, I’m actually about to purchase more after this review.
Gary R. (verified owner) –
Works as intended and fast delivery.
Mike S. (verified owner) –
Good Product – Professional
Justin F. (verified owner) –
Excellent product and excellent service! Package arrived early all 3 x I’ve ordered! I won’t get my peptides anywhere else now.
Joe M. (verified owner) –
Satisfied