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PureChain Peptides
IGF-1 LR3 1mg — PureChain Peptides research vialThird-party tested

Synthetic Peptide Complex

IGF-1 LR3

99%+ Purity & IdentityJanoshik & Kovera third-party tested

IGF-1 LR3 (Insulin-like Growth Factor 1, Long Arg3) is an 83-amino acid synthetic analogue of human IGF-1. Designed with a prolonged half-life, it is heavily utilized in laboratory models to study cellular hyperplasia, skeletal muscle regeneration, and systemic metabolic function without interference from IGF-binding proteins.

About the compound

What IGF-1 LR3 is.

IGF-1 LR3 is a modified form of insulin-like growth factor 1 that breaks down more slowly in laboratory conditions. Research has examined it for effects on cell growth, protein synthesis and muscle cell differentiation in culture.

Modified to last longer in the dish

Specification

Purity
99%+ (HPLC)
Identity
Confirmed by mass spectrometry
Form
Lyophilized powder
Testing
Janoshik Analytical & Kovera Labs, per batch
Use
In-vitro laboratory research only

Lyophilized. Store at -20 °C. Avoid repeated freeze-thaw cycles.

Compound information

Type
Recombinant protein reference standard
Chain length
83 amino acids

Also known as

  • Long R3 IGF-1

An IGF-1 analogue with an extended N-terminus and a substitution at position 3.

IGF-1 LR3 technical specification

Storage & stability

  • Lyophilized−20°C
  • Reconstituted14–21 days refrigerated
  • LightLight sensitive — amber vial
  • SolubilitySoluble in bacteriostatic water

Bundle & save

Buy more, pay less per vial.

The discount applies automatically at checkout — no code to remember. Prices shown are for IGF-1 LR3 1mg.

Save up to 17%

1 vial

$73.99each

Single vial price

$73.99 per mg

Order total
$73.99
You save
—
Most popular
2 vials

$70.29each

$73.99 −5%

$70.29 per mg

Order total
$140.58
You save
$7.40
3 vials

$68.07each

$73.99 −8%

$68.07 per mg

Order total
$204.21
You save
$17.76
5 vials

$65.11each

$73.99 −12%

$65.11 per mg

Order total
$325.55
You save
$44.40
Best value
10 vials

$61.41each

$73.99 −17%

$61.41 per mg

Order total
$614.10
You save
$125.80

Volume pricing is applied per size. Mixing sizes is fine — each size earns its own tier.

Certificate of Analysis

99%+

Identity purity

Every lot of IGF-1 LR3 is independently tested before release. Third-party verified — we never self-certify.

Compound
IGF-1 LR3
Method
HPLC + Mass Spectrometry
Testing lab
Janoshik Analytical / Kovera Labs
  • Identity — Confirmed by mass spectrometry (MS)
  • Purity — Quantified by HPLC — 99%+ standard
  • Net content — Verified against label claim
  • Appearance — Inspected before release

COA documentation available on request — info@purechainpeps.com

Research

What IGF-1 LR3 has been studied for.

A plain-language summary of the published work. Almost all of it is in cells and animals — where a study was done in people, it says so.

Full research entry

  1. 01

    A longer-acting IGF-1

    IGF-1 LR3 is a modified insulin-like growth factor 1. The modifications reduce how strongly it binds to the carrier proteins that normally hold IGF-1 inactive.

  2. 02

    The mediator of growth hormone

    Most of what growth hormone is measured to do is attributed to IGF-1, which is why it is the standard readout in that research.

  3. 03

    Cell growth and protein synthesis

    Cell-culture work has studied its effect on cell division and on the rate at which cells build protein.

Sold for laboratory research use only. Not a drug, not a supplement, and not for human or veterinary use. Nothing above is a claim about what this compound does in people.

Researchers also added

What IGF-1 LR3 is usually ordered alongside.

Grouped by what the published research actually studies together — not by what sits in the same category.

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