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IGF-1 LR3 vs Ipamorelin

Which should you choose? Here's what you need to know.

The short answer

IGF-1 LR3 and Ipamorelin are both growth hormone peptides, but they work differently. A modified version of IGF-1 with an extended half-life due to an arginine substitution. Studied for its potent growth-promoting and anabolic effects. A selective growth hormone secretagogue that stimulates GH release with minimal effect on cortisol and prolactin. Popular for its clean side-effect profile. Compare vendor pricing and availability below.

IGF-1 LR3

Growth Hormone

A modified version of IGF-1 with an extended half-life due to an arginine substitution. Studied for its potent growth-promoting and anabolic effects.

Ipamorelin

Growth Hormone

A selective growth hormone secretagogue that stimulates GH release with minimal effect on cortisol and prolactin. Popular for its clean side-effect profile.

Price & availability

Once you've decided which peptide fits your needs, here's how they compare on price and vendor options.

IGF-1 LR3
Ipamorelin
$10.00
Starting from
$15.99
$237.75
Avg. price per mg
$15.69
35
Vendors selling it
60
33 options
In stock now
83 options
9.1/10
Top trust score
9.0/10
0
Purity tests on file
0

Ready to buy?

Our top-rated vendor for each, based on trust scores, purity testing, and price.

Best IGF-1 LR3 Vendor

Eros Peptides
Eros Peptides
6.9/10

$39.99(1mg)

Best Ipamorelin Vendor

Orbitrex Peptides
Orbitrex Peptides
9.0/10

$59.99(10mg)

See all IGF-1 LR3 vendorsSee all Ipamorelin vendors

Where does this data come from?

We check vendor prices every day and pull in real purity test results from independent labs — not vendor claims. No vendor can pay to rank higher. See our full methodology.