

Growth Hormone
IGF-1 LR3
1 kit — $280.00 per kit (10 vials).
Select dose
Select kit quantity
All vial caps are white and flip-off.
Third-party tested
HPLC + MS verified on every production lot.
Same day shipping
All orders received by 4:00 PM PST ship the same day.
COA on request
Lot documentation available for every compound.
IGF-1 LR3 is supplied in 1 mg vials, packed 10 vials per kit (1 SKU minimum). CAS 946870-92-4. Purity 99.39% by HPLC.
Description
Research-grade IGF-1 LR3, a long-arginine insulin-like growth factor analogue, supplied lyophilized with third-party purity documentation.
What is IGF-1 LR3?
IGF-1 LR3 is a recombinant analogue of insulin-like growth factor 1 carrying an arginine substitution and a 13-amino-acid N-terminal extension, which lowers binding-protein affinity and extends activity in culture and in vivo models.
Key research applications
Growth-factor signalling
Reference ligand for IGF-1R and downstream PI3K/Akt pathway assays.
Myotube and cell culture
Used to drive proliferation and differentiation endpoints.
Tissue repair models
Studied alongside structural peptides in regeneration protocols.
IGF-1 LR3 specifications
- Amount
- 1 mg per vial · 10 vials per kit
- Purity
- 99.39%+ (third-party HPLC and mass spectrometry)
- CAS
- 946870-92-4
- Form
- Lyophilized powder
- Storage
- -20°C or below as a lyophilized powder; 2-8°C after reconstitution and used within the window defined by your protocol.
- Testing
- Batch-specific COA available with every order
- Origin
- US manufactured, third-party tested
- Presentation
- White flip-off caps on every vial
Research use only. Not for human or veterinary consumption, diagnostic, or therapeutic use.
Wholesale American Peptides · Private Label Service
Custom labeling for your IGF-1 LR3 kits
Put your brand on every vial. Add custom labels at $3 per vial — just $30 per 10-vial kit — and your order ships with your artwork applied.
$3 per vial
Flat rate applied to every vial in your kit — no setup fees, no minimums beyond your kit order.
Your brand, your artwork
Send us your logo and design, or start from our print-ready 3 mL template sized to every vial we ship.
Applied before dispatch
Labels are printed and applied in-house, so your kits arrive shelf-ready with same-day shipping intact.