Where to Buy IGF-1 LR3 in 2026: 11 Lab-Tested Sellers, From $35.75/mg With a Coupon Code
Where to buy IGF-1 LR3: PepAssess lists IGF-1 LR3 at 37 vendors. As of November 12, 2026, the lowest price with a coupon code is $35.75/mg at True Peptide Labs (code peppasses); the median across all sellers is $75/mg. Vendors are ranked by Evidence Score.
Prices and codes updated November 12, 2026 · re-checked every night
It has an arginine in place of glutamate at position 3 and an extra stretch of amino acids at one end.
Learn more about IGF-1 LR3 from the published research: The Journal of Endocrinology (1997) · The Journal of Endocrinology (1996)
The compounds listed on this page are for research purposes only, not for human consumption.
IGF-1 LR3 reconstitution calculator →
IGF-1 LR3 coupon codes
Every IGF-1 LR3 coupon code
41 IGF-1 LR3 sellers with a confirmed code — PepAssess's preferred vendor first, then highest Evidence Score.
| Shop | Score | Vial with code | Per mg | Per mg with code | vs typical | Code discount | Code | |
|---|---|---|---|---|---|---|---|---|
| Platinum LionPreferred | 93score | — | — | — | — | 25% off | ShopShop ↗ | |
| Rebirth LabsPreferred | 84score | 1 mg vial $80.99 with code | $89.99/mg | $80.99/mg with code | — | 10% off | ShopShop ↗ | |
| Hydro Research Peptides | 100score | — | — | — | — | 20% off | ShopShop ↗ | |
| Lost Coast Aminos | 100score | — | — | — | — | 10% off | ShopShop ↗ | |
| Myoasis Labs | 99score | 1 mg vial $53.60 with code | $67/mg | $53.60/mg with code | 16% below typical | 20% off | ShopShop ↗ | |
| Bench Grade Peptides | 95score | 1 mg vial $160.20 with code | $178/mg | $160.20/mg with code | — | 10% off | ShopShop ↗ | |
| True Peptide Labs | 92score | 1 mg vial $35.75 with code | $55/mg | $35.75/mg with code | 31% below typical | 35% off | ShopShop ↗ | |
| Arctic Lab Supply | 90score | 1 mg vial $56.24 with code | $74.99/mg | $56.24/mg with code | 6% below typical | 25% off | ShopShop ↗ | |
| Peptide Giants | 89score | 1 mg vial $43.70 with code | $46/mg | $43.70/mg with code | 43% below typical | 5% off | ShopShop ↗ | |
| Rivn Research | 88score | 1 mg vial $50.99 with code | $59.99/mg | $50.99/mg with code | 25% below typical | 15% off | ShopShop ↗ | |
| Blue Ridge Peptides | 88score | 1 mg vial $40.50 with code | $45/mg | $40.50/mg with code | 44% below typical | 10% off | ShopShop ↗ | |
| Alpha Peptides | 87score | 1 mg vial $40.92 with code | $45.47/mg | $40.92/mg with code | 43% below typical | 10% off | ShopShop ↗ | |
| My Amino Lab | 86score | — | — | — | — | 10% off | ShopShop ↗ | |
| Pivot Labs Global | 86score | 1 mg vial $84.15 with code | $99/mg | $84.15/mg with code | — | 15% off | ShopShop ↗ | |
| Rejuven8 Peptides | 85score | 1 mg vial $60.56 with code | $75/mg | $63.75/mg with code | 6% below typical | 15% off | ShopShop ↗ | |
| Disguised Alpha | 83score | — | — | — | — | 10% off | ShopShop ↗ | |
| One Aminos | 83score | — | — | — | — | 33% off | ShopShop ↗ | |
| Echo Peptides | 83score | 1 mg vial $93.49 with code | $109.99/mg | $93.49/mg with code | — | 15% off | ShopShop ↗ | |
| LUV Aminos | 83score | 1 mg vial $46.80 with code | $52/mg | $46.80/mg with code | — | 10% off | ShopShop ↗ | |
| VAYN | 81score | 1 mg vial $60 with code | $75/mg | $60/mg with code | 6% below typical | 20% off | ShopShop ↗ | |
| BioInfinity | 81score | — | — | — | — | 10% off | ShopShop ↗ | |
| Palmetto Peptides | 79score | 1 mg vial $67.50 with code | $75/mg | $67.50/mg with code | 6% below typical | 10% off | ShopShop ↗ | |
| MsAmino | 78score | 1 mg vial $44.00 with code | $109.99/mg | $87.99/mg with code | — | 20% off | ShopShop ↗ | |
| Prime Peptide Solutions | 78score | 1 mg vial $80.99 with code | $89.99/mg | $80.99/mg with code | — | 10% off | ShopShop ↗ | |
| Ps Peptides | 77score | 1 mg vial $78.56 with code | $89.99/mg | $80.99/mg with code | — | 10% off | ShopShop ↗ | |
| Great Northern Peptides | 76score | — | — | — | — | 10% off | ShopShop ↗ | |
| V8 Peptides | 76score | — | — | — | — | 10% off | ShopShop ↗ | |
| Zesty Rat | 75score | 1 mg vial $80.99 with code | $89.99/mg | $80.99/mg with code | — | 10% off | ShopShop ↗ | |
| Platinum Biolabs | 73score | 1 mg vial $82.50 with code | $110/mg | $82.50/mg with code | — | 25% off | ShopShop ↗ | |
| Blackline Scientific | 72score | 1 mg vial $72 with code | $90/mg | $72/mg with code | — | 20% off | ShopShop ↗ | |
| GenX Peptides | 68score | 1 mg vial $72.25 with code | $85/mg | $72.25/mg with code | — | 15% off | ShopShop ↗ | |
| Ascend Research | 66score | 1 mg vial $112.46 with code | $124.95/mg | $112.46/mg with code | — | 10% off | ShopShop ↗ | |
| Value Research Labs | 64score | 1 mg vial $55.99 with code | $69.99/mg | $55.99/mg with code | 13% below typical | 20% off | ShopShop ↗ | |
| VMAX Peptides | 63score | 2 mg vial $76.41 with code | $42.45/mg | $38.21/mg with code | — | 10% off | ShopShop ↗ | |
| Peptuvia | 63score | 1 mg vial $237.60 with code | $264/mg | $237.60/mg with code | — | 10% off | ShopShop ↗ | |
| Vitality Chems | 59score | 1 mg vial $129.04 with code | $144.99/mg | $129.04/mg with code | — | 11% off | ShopShop ↗ | |
| 99PurityPeptides | 43score | — | — | — | — | 10% off | ShopShop ↗ | |
| TCORE BIOTECH | 33score | 1 mg vial $68.47 with code | $85.59/mg | $68.47/mg with code | — | 20% off | ShopShop ↗ | |
| Sparta Labs | 31score | — | — | — | — | 15% off | ShopShop ↗ | |
| Helix Bio Chem | 16score | 1 mg vial $62.99 with code | $69.99/mg | $62.99/mg with code | 13% below typical | 10% off | ShopShop ↗ | |
| XLR8 | 15score | 1 mg vial $79.19 with code | $98.99/mg | $79.19/mg with code | — | 20% off | ShopShop ↗ |
Where to buy IGF-1 LR3: the short answer
What is the lowest IGF-1 LR3 price with a coupon code?
As of November 12, 2026, the lowest IGF-1 LR3 price PepAssess found with a coupon code is at True Peptide Labs: $35.75 per mg with code peppasses (35% off; $55.00 per mg before the code). Prices are re-checked every night. True Peptide Labs coupon code
What is the best IGF-1 LR3 coupon code?
As of November 12, 2026, the biggest IGF-1 LR3 coupon code PepAssess has confirmed is peppasses for 35% off at True Peptide Labs, which brings it to $35.75 per mg. PepAssess lists each code with its discount and the seller's Evidence Score, based on lab reports confirmed with the testing labs. True Peptide Labs coupon code
Where can I buy lab-tested IGF-1 LR3?
As of November 12, 2026, PepAssess lists 37 online vendors selling IGF-1 LR3. 11 of them publish a IGF-1 LR3 lab report that the testing lab confirmed on its own records, and 4 of those cover both purity (HPLC and mass spec) and toxicity (endotoxin or sterility). The highest-scoring vendors with a lab-confirmed IGF-1 LR3 report are Hydro Research Peptides (100/100), Lost Coast Aminos (100/100) and Myoasis Labs (99/100). Compare all 37 IGF-1 LR3 vendors on PepAssess
What is the best IGF-1 LR3 vendor?
PepAssess ranks IGF-1 LR3 vendors by Evidence Score (0–100): what each vendor documents — lab reports confirmed by the labs, how often it tests, business transparency and buyer protection. As of November 12, 2026, the top-scoring IGF-1 LR3 vendors are Hydro Research Peptides (100/100), Lost Coast Aminos (100/100) and Myoasis Labs (99/100) — all three with a lab-confirmed IGF-1 LR3 report.
What is the cheapest IGF-1 LR3 per mg?
The lowest IGF-1 LR3 price PepAssess found is $42.45/mg at VMAX Peptides; the median across vendors is $75/mg (as of November 12, 2026). Among vendors with a lab-confirmed IGF-1 LR3 report, the lowest is $67/mg at Myoasis Labs. Prices come from each vendor's own store and exclude shipping and discounts.
IGF-1 LR3 cost per week
What one 1 mg vial of IGF-1 LR3 costs per week of research, at the lowest one-vial price with a coupon code: $35.75 at True Peptide Labs (code peppasses, $35.75/mg), as of November 12, 2026.
| One vial used over | Cost per week |
|---|---|
| 2 weeks | $17.88 |
| 4 weeks | $8.94 |
| 8 weeks | $4.47 |
Lab-confirmed IGF-1 LR3 reports
14 of 37 sellers publish a IGF-1 LR3 lab report. 11 have one the testing lab confirmed on its own records; 4 of those cover both purity (HPLC + mass-spec identity) and toxicity (endotoxin or sterility). Those covering both are listed first, then by Evidence Score.
| Vendor | Purity | Toxicity | Latest | Per mg | Code | Score | |
|---|---|---|---|---|---|---|---|
 Lost Coast Aminos | Purity ✓↗ | Toxicity ✓↗ | May 2026 | — | 10% off | 100score | ShopShop ↗ |
 Platinum Lion | Purity ✓↗ | Toxicity ✓↗ | Feb 2026 | — | 25% off | 93score | ShopShop ↗ |
 Disguised Alpha | Purity ✓↗ | Toxicity ✓↗ | Jul 2026 | — | 10% off | 83score | ShopShop ↗ |
 Ps Peptides | Purity ✓↗ | Toxicity ✓↗ | — | $89.99/mg | 10% off | 77score | ShopShop ↗ |
 Hydro Research Peptides | Purity – | Toxicity ✓↗ | Sep 2025 · over a year old | — | 20% off | 100score | ShopShop ↗ |
 Myoasis Labs | Purity ✓↗ | Toxicity – | Jun 2026 | $67/mg | 20% off | 99score | ShopShop ↗ |
 Bench Grade Peptides | Purity ✓↗ | Toxicity – | Aug 2026 | $178/mg | 10% off | 95score | ShopShop ↗ |
 My Amino Lab | Purity ✓↗ | Toxicity – | Sep 2026 | — | 10% off | 86score | ShopShop ↗ |
 Prime Peptide Solutions | Purity – | Toxicity – | Oct 2026 | $89.99/mg | 10% off | 78score | ShopShop ↗ |
 Zesty Rat | Purity – | Toxicity – | Aug 2026 | $89.99/mg | 10% off | 75score | ShopShop ↗ |
 Value Research Labs | Purity – | Toxicity ✓↗ | Jul 2026 | $69.99/mg | 20% off | 64score | ShopShop ↗ |
| # | Vendor | Doses (mg) | From | Best $/mg | Evidence score ⓘ | |
|---|---|---|---|---|---|---|
| 1 | — | — | — | 93score | Shop | |
| 2 | — | — | — | 100score | Shop | |
| 3 | 1, 5, 10 | from $59.99 ↗ | $59.99/mg | 88score | Shop | |
| 4 | 1 | from $178 ↗ | $178/mg | 95score | Shop | |
| 5 | 1 | from $67 ↗ | $67/mg | 99score | Shop | |
| 6 | 1 | from $89.99 ↗ | $89.99/mg | 84score | Shop | |
| 7 | 1 | from $109.99 ↗ | $109.99/mg | 78score | Shop | |
| 8 | 1 | from $75 ↗ | $75/mg | 81score | Shop | |
| 9 | 1 | — | — | 100score | Shop | |
| 10 | 1 | from $75 ↗ | $75/mg | 85score | Shop | |
| 11 | — | — | — | 83score | Shop | |
| 12 | — | — | — | 83score | Shop | |
| 13 | 1 | — | — | 86score | Shop | |
| 14 | — | — | — | 81score | Shop | |
| 15 | 1 | from $89.99 ↗ | $89.99/mg | 78score | Shop | |
| 16 | 1 | from $45.47 ↗ | $45.47/mg | 87score | Shop | |
| 17 | 1 | from $46 ↗ | $46/mg | 89score | Shop | |
| 18 | 1 | from $74.99 ↗ | $74.99/mg | 90score | Shop | |
| 19 | 1 | from $69.99 ↗ | $69.99/mg | 64score | Shop | |
| 20 | 1 | from $45 ↗ | $45/mg | 88score | Shop | |
| 21 | 1 | from $109.99 ↗ | $109.99/mg | 83score | Shop | |
| 22 | 1 | from $89.99 ↗ | $89.99/mg | 75score | Shop | |
| 23 | 1 | from $75 ↗ | $75/mg | 79score | Shop | |
| 24 | 1 | — | — | 76score | Shop | |
| 25 | 0.1, 1 | from $24.99 ↗ | $89.99/mg | 77score | Shop | |
| 26 | 1 | from $90 ↗ | $90/mg | 72score | Shop | |
| 27 | 1 | — | — | 43score | Shop | |
| 28 | 1 | from $85.59 ↗ | $85.59/mg | 33score | Shop | |
| 29 | — | — | — | 31score | Shop | |
| 30 | 1 | from $69.99 ↗ | $69.99/mg | 16score | Shop | |
| 31 | 1 | from $98.99 ↗ | $98.99/mg | 15score | Shop | |
| 32 | 1 | from $85 ↗ | $85/mg | 68score | Shop | |
| 33 | 1 | — | — | 76score | Shop | |
| 34 | 1 | from $55 ↗ | $55/mg | 92score | Shop | |
| 35 | 1 | from $124.95 ↗ | $124.95/mg | 66score | Shop | |
| 36 | 1, 2 | from $54.90 ↗ | $42.45/mg | 63score | Shop | |
| 37 | 1 | from $144.99 ↗ | $144.99/mg | 59score | Shop |
Prices come from each vendor's own public store data and may exclude shipping, discounts or bulk pricing. Research-use products; not medical advice.
About IGF-1 LR3
What it is
It has an arginine in place of glutamate at position 3 and an extra stretch of amino acids at one end. Suppliers sell it mainly for culturing cells and stem cells.
How it works
- Binds the IGF-1 receptor, with reduced binding to IGF-binding proteins.
- That weak binding gives it higher potency and a longer duration in cells and animals.
The compounds listed on this page are for research purposes only, not for human consumption. Not medical advice.
Related: PEG-MGF · Follistatin · Sermorelin · Tesamorelin
IGF-1 LR3: more questions people ask
Which IGF-1 LR3 vendors have lab reports confirmed by the testing lab?
11 as of November 12, 2026. Those whose confirmed reports cover both purity and toxicity: Lost Coast Aminos, Platinum Lion, Disguised Alpha and Ps Peptides. PepAssess matches each report to the issuing lab's own public record, not the vendor's copy.
How can I tell if a IGF-1 LR3 certificate of analysis (COA) is real?
Look the report up in the testing lab's own records — most labs that test peptides publish a lookup by report ID, QR code or lot number. PepAssess does this for every IGF-1 LR3 report it finds: as of November 12, 2026, 11 of the 14 sellers publishing a IGF-1 LR3 report had one the lab confirmed.
How much does a vial of IGF-1 LR3 cost?
As of November 12, 2026, a 1 mg vial of IGF-1 LR3 costs a median $85 across the 219 sellers PepAssess found with one in stock (lowest $23.26); a 5 mg vial, a median $140 across 18 sellers (lowest $99); a 0.1 mg vial, a median $31.16 across 15 sellers (lowest $10.25). Each seller's lowest in-stock price for that size counts once; prices come from each seller's own store and exclude shipping and discounts.
Can you buy IGF-1 LR3 as a nasal spray or a pen?
Yes. As of November 12, 2026, 366 of the 37 IGF-1 LR3 sellers PepAssess lists sell a vial; 28 a nasal spray and 21 a pen or pre-filled form. Counts come from each store's own product names. A lab report covers the product and batch it names — check that it's for the form you're buying.
How do I know if a IGF-1 LR3 seller is legit?
Check what the seller can show. As of November 12, 2026, PepAssess checks every IGF-1 LR3 seller for three things: a IGF-1 LR3 lab report that the testing lab confirms on its own records (11 of 37), card payments, which let you dispute a charge (30 of 37), and a published street address — not a mailbox or registered agent (17 of 37). Each seller's PepAssess profile shows which of these it has.
Are there IGF-1 LR3 coupon codes?
Yes. PepAssess lists coupon codes for 37 vendors selling IGF-1 LR3: Hydro Research Peptides: PepAssess20 (20% off), Lost Coast Aminos: PEPASSESS (10% off), Myoasis Labs: pepassess (20% off), Bench Grade Peptides: PEPASSESS (10% off), Platinum Lion: pepassess (25% off), True Peptide Labs: peppasses (35% off) and 31 more.