IGF-1 LR3 Wholesale & bulk
99.53% pure. 6× tested. Same-day shipping.
Overview
IGF-1 LR3 is an 83-residue analogue of insulin-like growth factor I: arginine replaces glutamate at position 3, and a 13-residue extension is added at the N-terminus. It is commonly reconstituted in dilute acetic acid rather than water.
The name stands for Long R3 IGF-I: "Long" for the N-terminal extension and "R3" for the arginine at position 3. Together the two changes make the analogue bind the IGF-binding proteins far less strongly than native IGF-I. It was developed in Australia as a cell-culture media supplement and remains a standard reagent in bioprocessing.
It is supplied as a 1 mg fill, the smallest in the catalog by mass, in keeping with the microgram-scale quantities common in cell-culture work. Dilute acetic acid solution for reconstitution is sold in the catalog as a supply and can ship on the same order.
The certificate for one batch of IGF-1 LR3 is published in full, covering the 1 mg fill, with its HPLC chromatogram and a laboratory report number that can be independently verified.
The minimum is 50 vials (5 kits) across the whole order, not per compound: this compound is ordered in 10-vial kits and can be mixed with anything else in the catalog to reach it. Bulk orders earn volume pricing on every line.
Wholesale & bulk pricing
PER VIAL · 1 SKUPrices are per vial and every compound ships in 10-vial kits, so buying IGF-1 LR3 in bulk is a matter of kit count. Your tier is set by the compound kits on the order, not per compound — so 25 kits split across several compounds earn the same Tier 2 price on IGF-1 LR3 as 25 kits of IGF-1 LR3 alone. The minimum is 50 vials (5 kits) across the order, and supplies sit outside both.
| PER | Tier 15–24 kitsLIST | Tier 225–99 kits−10% | Tier 3100+ kits−30% |
|---|---|---|---|
| VIALIG1 | $30.00$300.00 / kit | $27.00$270.00 / kit−10% · save $750.00 at 25 kits | $21.00$210.00 / kit−30% · save $9,000.00 at 100 kits |
Wholesale pricing per vial, ordered in 10-vial kits. Volume tiers apply to the compound kits on your order, mixed across any of them; supplies are priced flat and sit outside the tiers and the order minimum. Effective October 2026; confirmed in writing with your order and subject to change. A kit is 10 vials.
What a bulk IGF-1 LR3 order costs
IGF-1 LR3 1 MG, priced at the first kit count of each tier. The tier counts every kit on the order, so mixing in other compounds can only lower these figures. Shipping is extra; see the wholesale terms below.
| ORDER | TIER | PER VIAL | PER MG | ORDER TOTAL |
|---|---|---|---|---|
| 50 vials5 kits | Tier 1 | $30.00 | $30.00 | $1,500.00 |
| 250 vials25 kits | Tier 2 | $27.00 | $27.00 | $6,750.00 |
| 1,000 vials100 kits | Tier 3 | $21.00 | $21.00 | $21,000.00 |
Specifications
- CLASS
- IGF-I analogue (83 residues)
- PURITY TARGET
- ≥ 99% purity
- PRESENTATION
- 1 MG · LYOPHILIZED
- STRENGTHS
- 1 MG
- SKUS
- IG1
- ALSO KNOWN AS
- Long R3 IGF-I
Reference values. The lot certificate is the source of record for tested figures.
Testing & certificate
Every new batch is tested by an independent lab before release — identity, quantity, purity, endotoxins, heavy metals, and sterility. Certificates are batch-specific: the purity number on the certificate is the exact value returned for that batch — nothing is rounded up, nothing is estimated.
Issued by an independent lab. Each certificate carries a report number and access code you can check directly with the lab — we do not stand between you and the laboratory. Certificates are batch-specific, so the figures above belong to the batch named on each row and not to any other.
All IGF-1 LR3 certificates of analysis, with chromatograms → Every published certificate is also searchable by batch or report number in the certificate library.
Wholesale terms
- MINIMUM ORDER
- 50-vial minimum. Mix any compounds to reach it. Ordered in 10-vial kits.
- PRICING
- From $21.00 per vial at 100+ kits — see the tier table. Confirmed in writing with your order.
- WHO WE SELL TO
- Resellers and institutions (resale certificate welcome)
- ORIGIN
- US-sourced and US-warehoused. Never relabeled from overseas.
- LABELING
- Stock vials ship unlabeled. The labeled vial shown on our product pages and catalog is an illustration — it exists so you can see the compound and dose at a glance, and is not a photograph of what arrives. Your lot number is on your invoice, which is how you match what you received to its certificate. Printed vial labels are the white-label program.
- SHIPPING
- Shipping within the United States is charged per 400 vials: UPS 2nd Day Air $35.00 or UPS Next Day Air $100.00 for each 400 vials or part of 400, so 401–800 vials ships 2nd Day Air for $70.00. You choose the service on the order form. Orders in by noon Pacific ship the same business day from Costa Mesa, California; 2nd Day Air arrives in 1–2 business days — about 1–2 days in California, around 2 nationwide. Special destinations are quoted individually. Cold-chain packaging, where a compound requires it, is quoted and billed separately.
- RETURNS
- Research peptides are not returnable once shipped: sealed vials and chain-of-custody mean a returned vial cannot be released to another buyer. If a shipment arrives damaged, incomplete, or is not what you ordered, contact the desk and we will make it right.
Handling & storage
- STORAGE
- Store lyophilized refrigerated, protected from light. Shelf life up to 2 years refrigerated. Stable at ambient temperature for transit.
- RECONSTITUTION
- Reconstitute with bacteriostatic water for laboratory use. Reconstituted material is stable for up to 60 days depending on the compound — keep refrigerated and protected from light.
- PRESENTATION
- 1 MG · LYOPHILIZED
Handling guidance for laboratory research use only. Not for human consumption.
Frequently asked
What does IGF-1 LR3 cost wholesale?
IGF-1 LR3 is $30.00 per vial at list (5–24 kits) and $21.00 at Tier 3 (100+ kits). A bulk order of 1,000 vials of the 1 mg fill comes to $21,000.00. The tier counts every kit on the order, across all compounds.
How is IGF-1 LR3 different from native IGF-1?
Native IGF-I has 70 residues; IGF-1 LR3 has 83, adding a 13-residue N-terminal extension and an arginine in place of glutamic acid at position 3. The changes leave it binding the IGF-binding proteins far less strongly, so in cell culture more of it stays free in the medium.
Why is IGF-1 LR3 dissolved in acetic acid?
It is more soluble and more stable in a dilute acid than in neutral water. Acetic acid solution is in the catalog as a supply: it ships with an order but does not count toward the minimum.
What is the minimum wholesale order for IGF-1 LR3?
50 vials (5 kits) across the whole order, not per compound, in 10-vial kits. On its own, IGF-1 LR3 reaches it with 5 kits; 50 vials of the 1 mg fill come to $1,500.00 at list. Kits of any other compounds count toward the same minimum, and volume pricing starts at 25 kits (250 vials) across the order.
Is there a certificate of analysis for IGF-1 LR3?
Yes. One published batch covers the 1 mg fill, at 99.531% purity, with its HPLC chromatogram and the lab's report number. Vials ship unlabeled, so the batch number for an order is on its invoice.
ALSO IN GROWTH HORMONE
FROM THE CATALOG