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IGF-1 LR3, 100 mcg/vial

$21.00 $15.75

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What Is IGF-1 LR3?

IGF-1 LR3 is a synthetic peptide and lengthened analogue of human insulin-like growth factor 1. With a half-life of between 20 and 30 hours it is three times as effective as HGF1. Human insulin-like growth factor 1 is a protein hormone, and in the body, it’s produced naturally in the liver. It functions a little like insulin. Its effect is to move nutrition into the muscle cells. When it reaches those cells, it is used to build and repair muscle tissue. Importantly, it stimulates the growth of new muscle tissue, unlike other supplements which only work to repair existing tissue. It also operates on connective tissue, in the digestive system, particularly the intestines, and in the bones.
GF-1 LR3 works throughout the body, not just in the muscle area where it is injected. Don’t think that you can inject into a muscle area which you want to develop, and IGF-1 LR3 will just work on that specific area. It will work to enhance and promote muscle growth throughout your body.
The recommended dosage for men of IGF-1 LR3 is 40 – 50 mcg each day. For women, the suggested dose is much lower at 20mcg. Administration is via subcutaneous (under the skin) or intra muscular (into the muscle) injection. You should take your dosage once per day, or if you prefer you can split your dose and take it twice a day. Some athletes prefer this more continuous stream of IGF-1 LR3. The best time to administer your dose on a day when you will be in training is either before or after you exercise. On non-training days, you can take your dosage at any time that is convenient to you.
You should take IGF-1 LR3 for a maximum for thirty days at a time, and then take a break of no less than two weeks. A longer period than two weeks is ideal, as this allows your body to fully return to the sole use of its own natural hormones.

IGF-1 LR3 Benefits

IGF-1 LR3 is an effective agent for the repair and rebuilding of muscles. Used correctly it can help you bulk up, recover from injury more quickly and is a general aid to your training program. Its benefits as against other supplements are that it is very powerful and fast acting.
The effects of IGF-1 LR3 are enhanced by a good and careful diet, with a healthy balance between excellent protein sources, fats, vegetables and fruits, with a minimum of carbohydrates and sugars. You can continue to train as normal when using IGF-1 LR3.

IGF-1 LR3 Results

IGF-1 LR3 is all about repairing and building muscle. It was first used in the sports area by body-builders during the 1990’s, and has been a popular choice ever since for those people wishing to improve their bulk, power and performance.
If used as suggested, IGF-1 LR3 shows no adverse effects for most users. It can lead to slightly lowered insulin levels, so those with a disposition to diabetes should monitor themselves carefully while using IGF-1 LR3. Because this is such a powerful and potent tool for those seeking to improve their athletic performance, dosage guidelines and pauses in treatment periods should be closely observed.


Regular injectable form.

CAS Number


Molecular Formula


Molecular Mass

9117.5 g/mol

Other Names

Human IGF-I LR3, LR3 IGF1 Human, R3 IGF1, R3 IGF-1, R3IGF1, R3IGF-1, LONG IGF1, LONG IGF-1, LONG R3 IGF1, LONG R3IGF1, LONG R3 IGF-1, LONG R3IGF-1, Long arginine 3-IGF-1

Peptide Sequence


Physical Appearance

Sterile Filtered White lyophilized (freeze-dried) powder

Shipping Terms

Shipped at Room temp.


10 vials, 15 vials, 20 vials, 5 vials


1 mg/vial, 100 mcg/vial

All orders greater than $250.00 ship worldwide for free.