Growth hormone axis
Sermorelin
Growth hormone-releasing hormone analogue used in endocrine signalling research.
- Purity:
- ≥99% HPLC
- Sizes available:
- 5 mg – 20 mg
IGF-1 LR3
83-amino-acid analogue of IGF-1 that binds IGF-binding proteins far less.
Customers
IGF-1 LR3
83-amino-acid analogue of IGF-1 that binds IGF-binding proteins far less.
Format
Pen format is not yet available
We currently supply lyophilised vials only. Pre-filled pen devices are in development — join the waitlist and we will notify you when they are available.
1 mg
- Purity
- ≥99% HPLC
- Physical form
- Lyophilised powder
- Testing
- HPLC + mass spectrometry, per batch
This compound cannot be bought online: ask us about it. The ones that can are on the pricing page.
Consult about IGF-1 LR3No payment. No account. No obligation. One business day response.
Request the Certificate of Analysis (CoA)
What the research says
IGF-1 LR3 (Long R3 IGF-1) is an 83-amino-acid analogue of insulin-like growth factor 1: the human sequence with arginine in place of glutamic acid at position 3, plus a 13-amino-acid extension at the start of the chain. Those two changes cut its binding to the IGF-binding proteins that hold native IGF-1 in check, so it stays active far longer. Most of its literature comes from cell-culture work, where it is a common growth supplement. It is not approved as a medicine anywhere and has not received FDA approval. Supplied as lyophilized powder in a sealed vial.
- Purity
- ≥99% HPLC
- Research area
- Growth hormone axis
Also known as: Long R3 IGF-1, LR3 IGF-1
Growth hormone axis
≥99% HPLC
Sizes available: 1 mg
Physician-reviewed
- Independent laboratory Freedom Diagnostics
- Lowest published purity 99.01%
- Published certificates 43
- Content weighed, not claimed 36
- Verifiable with the lab's key 43
Documented research areas
- IGF-1 receptor
- IGF-binding proteins
- Cell-culture literature
IGF-1 LR3 specifications
| Property | Specification |
|---|---|
| Classification | Long R3 IGF-1, 83-amino-acid IGF-1 analogue |
| Also known as | Long R3 IGF-1, LR3 IGF-1 |
| Purity | ≥99% HPLC |
| Vial sizes available | 1 mg |
| Intended use | Supplied after physician review — not an approved medicine |
| Physical form | Lyophilised powder |
| Storage | -20 °C, protected from light |
| Reconstitution | Bacteriostatic water · 10 ml bottle, included at no charge (one per vial) |
| Testing | HPLC + mass spectrometry, per batch |
| Dispatch | Sealed box, tracked, from Argentina or the United States — no cold chain needed |
Certificate of analysis
The CoA for the specific batch you would receive is reviewed during your consultation and ships with the material.
Request this batch CoAFrequently asked questions
How do I know a lot is what it claims to be?
From that lot's certificate of analysis, not from what the supplier asserts. The certificate names the laboratory that took the measurement, the date, the task number, the method and the purity found. PeptoClinic publishes the full reports uncropped, exactly as the laboratory printed them.
What is a certificate of analysis and how do you read one?
It is the report an analytical laboratory issues on a specific sample. Four things are worth checking: which compound it claims to have measured, by what method (HPLC for purity, mass spectrometry for identity), what figure it found, and whether the task number can be verified against the laboratory. A certificate with no verifiable task number is a picture.
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