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Growth Hormone Secretagogues

IGF-1 LR3

Name: IGF-1 LR3
Brand: Elite Bioscience
Price: 88.00 USD
Availability: InStock
Rating: 5.0 (1 reviews)

1mg (Receptor Grade)

A receptor-grade IGF-1 analog studied for growth and muscle-biology research.

IGF-1 LR3 is a receptor-grade analog of insulin-like growth factor 1, a central player in growth and muscle biology. The LR3 modification is engineered for longer research-observable activity than native IGF-1.

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Research use only

All products are sold for laboratory or analytical research use only. Not for human or veterinary use. Elite Bioscience is a research-grade supplier and not a compounding pharmacy or 503A/503B outsourcing facility under the Federal Food, Drug, and Cosmetic Act. Statements on this site have not been evaluated by the FDA. Products are not intended to diagnose, treat, cure, or prevent any disease.

What it supports

Built for your research

A clear look at what this compound is here to support — in plain language, no hype.

Lean-mass research

A central compound in growth and muscle-biology research.

Recovery context

Associated with muscle repair and growth signaling.

Receptor-grade standard

A purity standard for research-oriented sourcing.

Longer-acting form

The LR3 modification extends activity relative to native IGF-1.

How it's thought to work

The science, plainly

Emerging science suggests how this compound relates to your body's own pathways. We share it for context — not as a promise.

01

An IGF-1 analog

Mirrors insulin-like growth factor 1, a core growth-and-repair signal.

02

Modified for longer activity

The LR3 form is engineered to resist clearance, extending its research-observable window.

03

Receptor-grade standard

Sourced to a purity level expected for research-grade use.

Handling & storage

Research application notes

How this compound is supplied and handled for laboratory research use.

Supplied as lyophilized powder for laboratory reconstitution with bacteriostatic water.
Store cold and protected from light; handle aseptically once reconstituted.
Intended for in vitro and laboratory research applications only — not for human use.
Confirm fit for your research application with a specialist in the first chat.

IGF-1 LR3 — laboratory research application

Selected research

Emerging science in this area

A few peer-reviewed studies that explore the compound this product is built around. We share these for context and curiosity — not as claims about what this product will do for you.

Recombinant human insulin-like growth factor-1 therapy for 6 months improves growth but not motor function in boys with Duchenne muscular dystrophyMuscle Nerve, 2020. Rutter et al. · 2020A small human clinical trial of recombinant IGF-1 in boys with Duchenne muscular dystrophy found improvements in growth metrics over six months, though motor function was unchanged. Emerging science suggests IGF-1 pathway activity is relevant to growth and muscle biology. View on PubMed

Intranasal long R3 insulin-like growth factor-1 treatment promotes amyloid plaque remodeling in cerebral cortex in 5XFAD miceJ Alzheimers Dis, 2025. Engel et al. · 2025A preclinical study in an Alzheimer's mouse model reported that intranasal Long R3 IGF-1 altered amyloid plaque morphology in the cortex but did not rescue cognition. Early research suggests the IGF-1 axis may intersect with neurodegenerative pathways. View on PubMed

Educational use

These studies are provided for educational purposes only and do not constitute medical advice. They explore the active compound this product is built around, not this specific product. These statements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease. For research use only.

Transparency

Certificate of Analysis

Every batch is third-party tested. Here's the proof for this product.

Batch-tested, on the record

The COA for this product is being prepared. Ask in chat and we'll send it straight over.

Good questions

What people ask first

What does 'receptor grade' mean?

It is a purity standard — the grade research-oriented buyers expect. We'll explain what that means for sourcing in the chat.

Is LR3 different from regular IGF-1?

Yes — the LR3 modification extends its research-observable activity. We'll keep the explanation plain in the first chat.

Can I talk to a specialist before buying?

Yes — optional, never required. Every product lists its price and ships through a secure checkout, so you can buy directly. If you want help choosing or matching a compound to your research application, start a private chat with a research specialist.

How is pricing handled?

Every product lists its price on the site. Add to cart and check out securely by card — volume discounts apply automatically. All transactions are secure and encrypted. No surprise charges, no recurring billing.

What if it isn't right for my research?

If a product isn't a fit for your research application, we'll say so and point you to what is. You're never committed by starting a chat, and every order is sold for laboratory and analytical research use only.

Customer reviews

1 review

Real reviews from verified buyers.

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Picked up same day I landed

Flew in and picked it up the same afternoon. They worked around my flight time and made it easy. Wasn't sure how cross-border logistics would go but it was seamless.

Diego F.· Tulum, MX· Jun 7, 2026

Secure card checkout

Add to cart and check out by card. All transactions are secure and encrypted.

Transparent pricing

Every product lists its price. Volume discounts apply automatically in the cart.

COA on every batch

Third-party tested. You can verify it yourself.