Growth Hormone
IGF-1 LR3 1mg
Early research studies how it switches on the cell-growth and repair signals the body uses to build and keep tissue. Research-grade IGF-1 LR3 is a synthetic 83-amino-acid analog of insulin-like growth factor-1, made for growth-factor signalling research. It binds less tightly to binding proteins, and its half-life is documented at 20-30 hours.
$75.00
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Orders by 1:30 PM MT ship the same dayShips from Canada, every day
- Free shipping over $140. Most Canadian stores start free shipping at $200.
- Discreet, unmarked packaging.
- Third-party tested by Janoshik
- COA published per batch
Reconstitution calculator for IGF-1 LR3 1mg →
- Tested by Janoshik, every batchIndependent HPLC and mass spec. The lab is named on the report.
- The report is public before you orderPublished under the lot number printed on the vial, so you can match them on arrival.
- Ships from Canada within 24 hoursTracked and discreet. Free shipping over $140.
Certificate of Analysis
- Purity (HPLC)
- 99%+
- Format
- Lyophilized powder
- Storage
- −20°C (long-term)
- Shipping
- Canadian domestic
- Testing
- HPLC purity + content
This batch's COA publishes here the day Janoshik files results, track it on Lab Reports.
How IGF-1 LR3 works, in plain words
- IGF-1 LR3 is a changed copy of insulin-like growth factor 1, the messenger the liver makes.
- It docks on the IGF-1 receptor, the docking point for the signals a cell uses to build protein and to divide.
- Two changes are built in: a short extra tail on one end, and one swapped amino acid.
- Both stop the carrier proteins in blood from catching it, so more of it stays free.
- The published record is animal work, and some of it points the opposite way to the design.
These are findings investigators reported in pigs and in fetal sheep in a laboratory, and two of them are harms rather than benefits. They are not a result for this vial, and not a result for any reader. IGF-1 LR3 is not approved by Health Canada or the FDA for any human or veterinary use, and everything Lux BioPure sells is supplied for laboratory research use only.
How it works, step by step
Step 1 of 2IGF-1 receptor
Step 1 · Target
IGF-1 receptor
- The same docking point natural IGF-1 uses.
- IGF-1 LR3 sits in it and switches it on.
- Studied for how a cell puts protein together, and how it decides whether to divide.
Two signal chains start inside the cell
- Those are the routes a cell uses to put protein together.
- They are also how it decides whether to divide.
MeasuredPigs given it for four days: the animals grew more slowly and ate less, growth hormone in the blood fell 23%, and each pulse fell 60%.PubMed record 9488001
Step 2 of 2The carrier proteins it slips past
Step 2 · Target
The carrier proteins it slips past
- Natural IGF-1 spends almost all its time held by carrier proteins, parked and inactive.
- The extra tail and the swapped amino acid stop those carriers holding this version.
- Studied for how much circulates free once the carriers cannot hold it.
More of it circulates free
- The active form is the free form, not the form a carrier is holding.
- More of it circulates free than natural IGF-1 does.
MeasuredFetal sheep: a short infusion cut insulin release by 66%, and a longer one led to four animal deaths from low blood sugar and low oxygen.PubMed record 37114757
What is IGF-1 LR3 1mg?
Long-acting IGF-1 analog research peptide for muscle and recovery studies.
- For laboratory research use only.
- Not for human or veterinary use.
- Not intended for diagnosis, treatment, cure, or prevention of any disease.
- Use only in a controlled lab setting, and only by trained staff.
Research Profile
preclinical research consensus for informational comparison only
What arrives, and what to do with it
The vial ships lyophilized, a sealed powder, not a ready-to-use liquid. It needs a diluent and a clean workspace before it is usable in a protocol: 0.6% acetic acid, or bacteriostatic water for a short hold.
What's in the box
One sealed 1 mg vial of lyophilized powder, with its lot number printed on the label. The 10-pack is ten of that same vial. The diluent is sold separately.
Refrigerate on arrival, warm before opening
It ships at room temperature, so the sealed vial goes in the fridge as soon as it arrives. The label says to store it in a cool, dark place, and -20°C is the figure for a long hold. Let the vial sit at room temperature for 15 to 30 minutes before opening. Reconstituted in 0.6% acetic acid it holds up to a year at 2-6°C; in bacteriostatic water it holds 7 days at most.
How to tell it went right
A properly reconstituted vial dissolves into a clear, colorless solution, with no cloudiness and no particles. If it does not, or if the lot on the vial does not match the report on our lab reports page, stop and contact us before it goes into a protocol.
Questions about IGF-1 LR3 1mg
What is IGF-1 LR3 studied for?
It sits in the same docking point natural IGF-1 uses, the one for the signals a cell follows to build protein and to divide. In pigs given it for four days, investigators reported the animals growing more slowly and eating less rather than more, with growth hormone in the blood falling 23%. Those are findings in pigs, and not a result for this vial.
[1]Four-day study of IGF-1 LR3 in pigs, reporting growth, food intake and growth-hormone levelsPubMed record 9488001
What did the animal studies actually report?
Two of the reported findings are harms rather than gains. In fetal sheep, a short infusion cut insulin release by 66%, and a longer infusion led to four animal deaths from low blood sugar and low oxygen.
[2]Study of IGF-1 LR3 infusion in fetal sheep, reporting insulin release, deaths and circulating amino acidsPubMed record 37114757
Is IGF-1 LR3 legal to buy in Canada for research?
Research peptides sold only for in vitro laboratory use sit in a legally distinct category from approved drugs, and that is the category this vial is sold in. Health Canada classifies a substance by marketing intent under the Food and Drugs Act, not by molecular structure, and Canada runs no licensing registry for research chemicals. IGF-1 LR3 holds no Drug Identification Number.
How is each batch tested?
An independent lab, Janoshik, runs HPLC and mass spec on every batch before it goes on sale. The report is published under the lot number printed on the vial label, so the two can be matched on arrival. The HPLC purity recorded for this product is 98%+.
What arrives in the box, and how is it stored?
One sealed 1 mg vial of lyophilized powder, with its lot number printed on the label, and the diluent is sold separately. It ships at room temperature, so the sealed vial goes in the fridge on arrival, and -20°C is the figure for a long hold. Reconstituted in 0.6% acetic acid it holds up to a year at 2-6°C, and in bacteriostatic water 7 days at most.
Is IGF-1 LR3 for human use?
No. Everything Lux BioPure sells is supplied for laboratory research use only, not for human or veterinary use, and not to diagnose, treat, cure or prevent any disease. IGF-1 LR3 is not approved by Health Canada or the FDA for any human or veterinary use.
Pairs With
Frequently asked questions
Are Lux BioPure products for human consumption?
No. All products are sold strictly for lab and research use only. They are not meant to diagnose, treat, cure, or prevent any disease.
How are your peptides tested for purity?
An independent third-party lab checks every batch before we put it on sale. Results show 99%+ purity.
How fast is shipping in Canada?
Orders usually ship within 24 hours. Shipping is a flat $20 anywhere in Canada, and it is free on orders above $140 after coupons. No tax is added: the price plus shipping is what you pay.
Do I need to be a certain age to purchase?
Yes. You must be 19 years of age or older to purchase from Lux BioPure.
For research purposes only. Not for human consumption. All products are sold strictly as research chemicals for in vitro laboratory use.