Third-party tested

IGF-1 LR3

Name: IGF-1 LR3
Brand: LynxLab
SKU: igf-1-lr3
Price: 49.99 GBP
Availability: InStock

A modified form of insulin-like growth factor 1, changed so it stays active far longer than standard IGF-1. Used in cell growth research.

Strength: 1mg

In stock

£49.99

per vial · £49.99 per mg

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•1mg strength, supplied as lyophilised powder
•£49.99 per mg, down to £34.99 a vial on 5
•99.23% purity by HPLC-UV, lot IGF1-2607
•Same-day dispatch before 6pm, Royal Mail Tracked 24

Sealed.Cold.Tested.

Lyophilised powder. Store at -20°C, protect from light.

Kept cold

Product information

IGF-1 LR3 is a modified form of insulin-like growth factor 1, with an arginine at position 3 and a 13 amino acid extension. The changes give it a longer half-life in research models. Supplied lyophilised.

Purity: 99.23% by HPLC-UV
Specification: ≥99% minimum
Form: Lyophilised powder
Strength: 1mg
Molecular weight: 9,111 Da
Price per mg: £49.99 per mg
Storage: -20°C, protect from light
Lot: IGF1-2607
Analysed: 28 Aug 2026

Questions & answers

What is IGF-1 LR3?

IGF-1 LR3 (IGF1 LR3) is a modified form of insulin-like growth factor 1 with a longer half-life. It is used in cell growth and proliferation research. Ours comes freeze-dried in 1mg vials, tested to ≥99% by HPLC.

Can I get IGF-1 LR3 in the UK?

Yes. We ship from UK stock with Royal Mail Tracked 24. Order before 6pm and it goes out the same day. UK delivery is free on every order.

How fast will my order arrive?

Order before 6pm and it ships the same day by Royal Mail Tracked 24. Most UK orders arrive the next working day.

How do I track my order?

We email you a Royal Mail tracking link as soon as your order ships.

What purity is IGF-1 LR3?

IGF-1 LR3 is tested to ≥99% purity by HPLC and supplied as lyophilised powder. You can read the lab report at the top of this page.

How should it be stored?

Store at -20°c, protect from light. Keep it sealed until you mix it. Once mixed, keep it in the fridge.

Product detail

What you get

In the vial

IGF-1 LR3 1mg, supplied as lyophilised powder and sealed. Tested to ≥99% purity by HPLC.

In the box

Your vials, packed cold and sealed, sent by Royal Mail Tracked 24. Delivery details.

With the order

A tracking link by email, and the batch lab report on this page. Returns policy.

About IGF-1 LR3 in the UK

IGF-1 LR3, also written IGF1 LR3, is a modified version of insulin-like growth factor 1. The changes make it last longer than standard IGF-1, which is why it is widely used in cell growth research. We sell it in 1mg vials, tested to ≥99% purity.

Longer-acting IGF-1

The LR3 change gives it a longer half-life.

1mg vials

Freeze-dried, for lab reconstitution.

Lab report included

The HPLC result for each batch is on this page.

Storing & handling

How to keep IGF-1 LR3 stable, from delivery to first use.

1
Storage
Store at -20°c, protect from light. Keep the vial sealed until you are ready to mix it.
2
Reconstitution
Supplied as lyophilised powder. Mix with bacteriostatic water before use.
Shop bacteriostatic water
3
Purity
Each batch is tested to ≥99% purity by HPLC. The report is at the top of this page.
4
After mixing
Once mixed, keep it in the fridge at 2-8°C and away from light.