Endocrine Research
CJC-1295 (No DAC) + Ipamorelin
29 + 5 amino acids · 3367.9 / 711.9 g/mol
WADA: prohibitedView
Sequence, molecular data, research status and testing standards for IGF-1 LR3, written for Canadian researchers.
IGF-1 LR3 is a synthetic, longer-lasting version of insulin-like growth factor 1 (IGF-1), a protein hormone that mediates many of the effects of growth hormone. It has an extra 13 amino acids at the start and one amino acid substitution that reduces binding to carrier proteins.
IGF-1 LR3 is widely used in cell culture, where it helps cells grow in laboratory media. Because it binds less to IGF-binding proteins, it stays active longer than natural IGF-1, which is why it is a common tool in cell biology research.
What it isA longer-lasting version of IGF-1, a growth signal the body makes mostly in the liver.
The plain-English storyAfter growth hormone arrives, the liver sends out IGF-1, a growth messenger that tells cells to multiply. LR3 is a longer-lasting version, which is why labs use it to help cells grow in dishes. Using it in a person is a different matter. It is not approved and is banned in sport.
How it works, in simple termsIt tells cells to grow and multiply.
What the science really showsMostly used in the lab to help cells grow in dishes.
Where it stands in CanadaNot an approved medicine in Canada, so nobody can legally sell it to you as one. Also banned in sport.
Educational information only. Not medical advice, and not a claim that this peptide is safe or effective for any use.
Peptide Authority summarizes published research for educational purposes only. Nothing here is medical advice or a claim that IGF-1 LR3 is safe or effective for any use.
| Type | Status in Canada | |
|---|---|---|
| Growth hormone | 191-amino-acid pituitary hormone | Authorized prescription drug |
| IGF-1 | 70-amino-acid growth factor | Authorized prescription drug (mecasermin) |
| IGF-1 LR3 | 83-amino-acid IGF-1 analogue | Research compound |
See the CJC-1295 + Ipamorelin profile or compare peptides side by side.
IGF-1 LR3 is not authorized by Health Canada as a drug, so it cannot legally be sold for human or animal use in Canada. In Canada it can only be sold as a research chemical for in-vitro laboratory use. This is general information, not legal advice. Peptide Authority does not sell IGF-1 LR3. Read how peptides are regulated in Canada.
IGF-1 LR3 is a synthetic, longer-lasting version of insulin-like growth factor 1 (IGF-1), a protein hormone that mediates many of the effects of growth hormone. It has an extra 13 amino acids at the start and one amino acid substitution that reduces binding to carrier proteins. It is also known as Long R3 IGF-1.
IGF-1 LR3 is not authorized by Health Canada as a drug, so it cannot legally be sold for human or animal use in Canada. In Canada it can only be sold as a research chemical for in-vitro laboratory use. This is general information, not legal advice. Peptide Authority does not sell IGF-1 LR3.
Peptide Authority does not sell IGF-1 LR3. It is not authorized for human or animal use in Canada, and products sold online cannot be verified without a lot-matched third-party Certificate of Analysis.
No. Growth hormone is made by the pituitary gland and stimulates the liver to produce IGF-1. IGF-1 LR3 is a modified version of IGF-1 itself, which acts downstream of growth hormone.
Yes. IGF-1 LR3 is on the World Anti-Doping Agency (WADA) Prohibited List: Prohibited: S2 (growth factors and growth-factor modulators).
29 + 5 amino acids · 3367.9 / 711.9 g/mol
29 amino acids (modified) · 3647.2 g/mol
This profile is for information only and is not medical advice. Products sold by Peptide Authority are for in-vitro laboratory research only and are not for human or animal consumption. See our full disclaimer.