Growth Factor Peptides
IGF-1 LR3 for Sale: Where to Buy, Compared by Price per mg
for a 1mg vial, across 8 of 9 vendors. Smaller vials look cheaper and cost more per mg.
PeptideDeck does not sell IGF-1 LR3 and earns nothing from the links below. None of our partner vendors stocks it, so this page compares the vendors that do, at their own prices, with plain links.
- Purity
- 98%+ by HPLC (vendor dependent)
- Vial
- 1mg vial
- Form
- Lyophilised powder
- Half-life
- ~20-30 hours
IGF-1 LR3 for sale, compared across the eight vendors that actually stock it. Vial sizes run from 100mcg to 1mg, so the sticker price is misleading and the per-mg column is the one to read. Prices checked 15 September 2026.
Where to buy IGF-1 LR3: 9 vendors compared
List prices observed 15 September 2026. Vial sizes differ between vendors, so the per-mg column is the honest comparison. We take no commission on these links.
About IGF-1 LR3
Where to buy IGF-1 LR3 is a harder question than it looks, because the vendors are not selling the same thing. One lists $28 and another $145, and the cheap one is more than three times the price once you account for what is in the vial.
Why the cheapest listing is the most expensive
Core Peptides lists IGF-1 LR3 at $28. That is a 100mcg vial, a tenth of a milligram, which works out at $280 per mg. PeakLab lists $71 for a full 1mg vial, which is $71 per mg. The $28 listing costs four times as much for the same amount of peptide.
This is the single most common way people overpay on IGF-1 LR3. Sort by price per mg, never by the number on the listing.
What to check before ordering
Ask for the certificate of analysis for the batch you will receive, not a generic one. IGF-1 LR3 is a 70-amino-acid protein rather than a short peptide, so purity by HPLC matters more than it does for something like BPC-157, and mass spectrometry confirming a molecular weight near 9,111 Da is the check that a supplier is shipping the LR3 analogue rather than plain IGF-1.
Cold chain is the second thing. IGF-1 LR3 degrades faster at room temperature than most research peptides. A vendor that ships without a cold pack in summer is telling you something about how they store it too.
Red flags
A vendor that will not name the vial size in milligrams is usually hiding a 100mcg vial behind a low price. A certificate with no batch number is not a certificate. And any vendor selling IGF-1 LR3 as an oral capsule or a nasal spray is selling something that cannot work: a protein this size does not survive either route.
Why we do not sell it
None of the vendors we work with stocks IGF-1 LR3, so there is no affiliate link on this page and no commission behind the ranking. The table is ordered by price per mg and nothing else. If that changes we will say so on the page rather than quietly reordering the table.
Research Benefits
Compare eight vendors on price per mg rather than sticker price
Vial sizes shown, because 100mcg and 1mg listings sit side by side
No affiliate links and no commission on this peptide
Prices dated, so you can see how stale they are
Product Specifications
| Molecular Weight | 9,111 Da |
| CAS Number | 946870-92-4 |
| Sequence | 70 amino acids (Long R3 analogue of IGF-1) |
| Half-Life | ~20-30 hours |
| Purity | 98%+ by HPLC (vendor dependent) |
| Form | Lyophilised powder |
| Storage | Refrigerate; ships with a cold pack |
Frequently Asked Questions
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