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PepFinder
Buyer's guide · November 2026 · 166 suppliers · United States

Compare IGF-1 LR3 suppliers in the US

166 of the suppliers we track list IGF-1 LR3 based in the US, and 156 have a listing on sale now. They are ranked by PepFinder Score, which combines reliability, selection, pricing, delivery, support and customer reviews, and shown with the prices they list per mg. Stores based in the US come before those shipping in from abroad, whatever their score. We don't sell IGF-1 LR3, and we give no guidance on its use. Only prices listed in USD are shown here; stores that price in other currencies are on All regions.Also known as Long R3 IGF-1, IGF1-LR3, IGF-LR3, IGF-1LR3, IGF1 LR3, IGF-1 LR3. Stores list it under any of these names, and all of them are matched here.

Prices checked 8 Nov 2026 · 218 listings · 194 confirmed in stock · 19 out of stock · Growth factor analogues

IGF-1 LR3 · listed price per mg
USD · single vials · 114 suppliersmedian US$85.00/mg
US$20.83/mgUS$459.90/mg

Multi-vial packs: US$30.00/mg to US$381.70/mg, median US$96.90/mg (21 listings), shown separately.

Each currency is shown separately; prices are never converted. Packs of several vials are compared per mg of the whole pack, apart from single vials.

IGF-1 LR3 in the US at a glance

Prices as listed on each store's site when last checked, 8 Nov 2026. Single vials only; packs and pens are compared separately below.

Cheapest per mg

US$20.83/mg

at BioPep (1.08 mg vial, US$22.50)

Median per mg

US$85.00/mg

across 114 suppliers

Highest per mg

US$459.90/mg

131 single-vial listings compared

On sale now

156

of 166 stores tracked that list IGF-1 LR3 in the US

Median, 30 days

-1.2%

USD median per mg, recorded daily since 24 Sept 2026

Where to start

The highest-ranked stores by PepFinder Score are Novel Human Optimization Ventures (9.2/10), Rivn Peptides (8.9/10) and Peak Lab Peptides (8.7/10). The lowest price per mg is at BioPep, well under the market median; a price far below the rest is more often a warning than a bargain. 1 of the 166 stores has a certificate of analysis for IGF-1 LR3 on file with us, shown under the listing. Ranking is by PepFinder Score alone; nobody pays to appear here or to move up.

Regulatory status

In United States the regulator is the U.S. Food and Drug Administration (FDA). Rules on buying, importing and using this product differ by country. Suppliers list it for laboratory research; nothing here is medical advice.

Suppliers 1–30 of 156 with listings on sale (10 more with everything out of stock) · prices in USD only, never converted

  1. 01
    Novel Human Optimization Ventures logo
    Business & docs verifiedThird-party testing statedCOA confirmed with lab

    166 products tracked · Delivery 3 working days · Ships to 60 countries · Est. 2017

    Pays byCardBank transferCryptoPayPal
    5.0(1)
    9.2/ 10PepFinder Score

    We may earn a commission. How this works

    From US$80.99/mg (1 mg vial)

    Listing as namedSizePricePer mgStock
    IGF-1 LR3 1 mg1 mgUS$80.99US$80.99/mgNot statedOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  2. 02
    Rivn Peptides logo
    Third-party testing statedCOA page linked, not reviewed✓ Verified owner

    40 products tracked · Delivery 2 days · Ships to 1 country · Est. 2025

    Pays byCardBank transferCryptoPayPal
    5.0(1)4.9 Trustpilot(706)
    8.9/ 10PepFinder Score

    We may earn a commission. How this works

    From US$59.99/mg (1 mg vial)

    Listing as namedSizePricePer mgStock
    IGF-1LR3 1MG1 mgUS$59.99US$59.99/mgIn stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  3. 03
    Peak Lab Peptides logo
    Business & docs verifiedThird-party testing statedCOA confirmed with lab

    184 products tracked · Delivery 1-4 days · Ships to 1 country · Est. 2025

    Pays byCard
    5.0(1)
    8.7/ 10PepFinder Score

    We may earn a commission. How this works

    Listing as namedSizePricePer mgStock
    IGF-1 LR3 10-Vial KitAs listed
    Kit
    US$464.00—In stockOn their site ↗
    IGF-1 LR3As listedUS$51.48—In stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  4. 04
    Naked Peptide Co logo
    Third-party testing statedCOA page linked, not reviewed✓ Verified owner

    65 products tracked · Delivery 3-5 Business Days · Ships to 1 country · Est. 2026

    Pays byCardBank transferCrypto
    5.0(1)
    8.3/ 10PepFinder Score

    We may earn a commission. How this works

    From US$67.00/mg (1 mg vial)

    Listing as namedSizePricePer mgStock
    IGF-LR31 mgUS$67.00US$67.00/mgIn stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  5. 05
    Direct SARMS logo

    Direct SARMS

    US based
    ✓ Verified owner

    376 products tracked · Delivery dispatched within 24-48 hours · Ships to 9 countries · Est. 2018

    Pays byCardBank transferCrypto
    8.3/ 10PepFinder Score

    We may earn a commission. How this works

    Listing as namedSizePricePer mgStock
    IGF-1 LR3 Pre Mixed Peptide 1mg3 cartridges
    Liquid
    US$276.70—In stock
    IGF-1 LR3 Pre Mixed Peptide 1mg1 cartridge
    Liquid
    US$102.48—In stock
    IGF-1 LR3 Pre Mixed Peptide 1mgPen Kit
    Kit
    US$136.23—In stock
    IGF-1 LR3 Pre Mixed Peptide 1mg2 cartridges
    Liquid
    US$204.97—In stock

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  6. 06
    Apex Laboratory logo
    Business & docs verifiedCOA page linked, not reviewed

    139 products tracked · Delivery 1–3 working days in the US. · Ships to 1 country · Est. 2021

    Pays byCard
    5.0(1)
    8.0/ 10PepFinder Score

    We may earn a commission. How this works

    From US$60.00/mg (1 mg vial)

    Listing as namedSizePricePer mgStock
    IGF-1 LR3100 mcgUS$11.00US$110.00/mgIn stockOn their site ↗
    IGF-1 LR31 mgUS$60.00US$60.00/mgIn stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  7. 07
    Blackline Scientific logo
    Third-party testing statedCOA page linked, not reviewed✓ Verified owner

    62 products tracked · Delivery 2 Business Days · Ships to 1 country · Est. 2026

    Pays byCardCryptoPayPal
    8.0/ 10PepFinder Score

    We may earn a commission. How this works

    From US$90.00/mg (1 mg vial)

    Listing as namedSizePricePer mgStock
    IGF-1 LR3 1mg1 mgUS$90.00US$90.00/mgIn stockOn their site ↗
    IGF-1 LR3 1As listedUS$90.00
    Store's price · 25 Sept 2026
    —Not statedOn their site ↗

    Prices as last stated by the supplier or checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  8. 08
    Peptide Labs logo

    Peptide Labs

    US based
    Third-party testing stated

    109 products tracked · Delivery Most domestic orders arrive in 2–4 business days via USPS Priority Mail or UPS Ground. · Ships to 1 country

    Pays byCardCrypto
    8.0/ 10PepFinder Score

    We may earn a commission. How this works

    From US$75.00/mg (pack of 10 × 1 mg)

    Listing as namedSizePricePer mgStock
    IGF-1 LR310 × 1 mg
    10 mg in total
    US$749.99US$75.00/mgIn stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  9. 09
    Peptidology logo

    Peptidology

    US based
    Third-party testing statedCOA page linked, not reviewed

    54 products tracked

    Pays byCardBank transferCrypto
    4.8 Trustpilot(179)
    8.0/ 10PepFinder Score

    We may earn a commission. How this works

    Listing as namedSizePricePer mgStock
    IGF-1 LR3As listedUS$86.00—In stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  10. 10
    GhostLabz logo

    GhostLabz

    US based
    Third-party testing statedCOAs reviewed✓ Verified owner

    41 products tracked · Ships to 11 countries

    Pays byCard
    7.9/ 10PepFinder Score

    We may earn a commission. How this works

    Certificate on file: ILS Laboratories · tested 21 Sept 2026 · stated purity 98.54% (reviewed by us) · View ↗

    Listing as namedSizePricePer mgStock
    IGF-1 LR3As listedUS$59.99—In stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  11. 11
    V8 Peptides logo

    V8 Peptides

    US based
    Third-party testing statedCOAs reviewed✓ Verified owner

    25 products tracked · Delivery USPS Ground 3-5 business days; USPS Priority 1-3 business days · Ships to 1 country · Est. 2026

    Pays byCardCrypto
    7.9/ 10PepFinder Score

    We may earn a commission. How this works

    Listing as namedSizePricePer mgStock
    IGF-1 LR3As listedUS$75.00
    Store's price · 28 Oct 2026
    —In stockOn their site ↗

    Prices as last stated by the supplier or checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  12. 12
    Puritide Research logo
    Third-party testing statedCOA page linked, not reviewed✓ Verified owner

    54 products tracked · Delivery Ups and arrive in 1 to 5 business days. · Est. 2026

    Pays byCardCrypto
    7.8/ 10PepFinder Score

    We may earn a commission. How this works

    From US$75.00/mg (1 mg vial)

    Listing as namedSizePricePer mgStock
    IGF-1 LR3 1mg1 mgUS$75.00US$75.00/mgIn stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  13. 13
    99PurityPeptides logo
    Third-party testing statedCOA page linked, not reviewed

    48 products tracked · Delivery dispatch promptly via UPS within 1 to 3 business days · Ships to 1 country

    Pays byCardPayPal
    4.8 Trustpilot(57)
    7.7/ 10PepFinder Score

    We may earn a commission. How this works

    Listing as namedSizePricePer mgStock
    IGF-1 LR3 (IGF1-LR3)As listedUS$594.99—In stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  14. 14
    Polaris Peptides logo
    Third-party testing stated

    57 products tracked

    Pays byCardBank transferCryptoPayPal
    4.1 Trustpilot(34)
    7.7/ 10PepFinder Score

    We may earn a commission. How this works

    From US$85.00/mg (1 mg vial)

    Listing as namedSizePricePer mgStock
    IGF1-LR3 1mg1 mgUS$85.00US$85.00/mgIn stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  15. 15
    Advanced Research Peptides logo
    Third-party testing stated✓ Verified owner

    44 products tracked · Delivery 2-7 business days · Ships to 1 country · Est. 2023

    Pays byCardCrypto
    7.6/ 10PepFinder Score

    We may earn a commission. How this works

    From US$90.00/mg (1 mg vial)

    Listing as namedSizePricePer mgStock
    IGF-1 LR3 1mg1 mgUS$90.00US$90.00/mgIn stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  16. 16
    JEWJITSU PEPTIDES logo
    Business & docs verifiedCOA page linked, not reviewed

    108 products tracked · Delivery Kits: 10–16 days; single vials via Israel Post: 2–4 days. Estimates, not guaranteed deadlines.

    Pays byCardBank transferCrypto
    7.6/ 10PepFinder Score

    We may earn a commission. How this works

    From US$59.50/mg (pack of 10 × 1 mg)

    Listing as namedSizePricePer mgStock
    IGF-1 LR310 × 1 mg
    10 mg in total
    US$595.00US$59.50/mgIn stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  17. 17
    ONYX BIOLABS logo

    ONYX BIOLABS

    US based
    Third-party testing statedCOA page linked, not reviewed

    35 products tracked

    Pays byBank transferCrypto
    4.4 Trustpilot(79)
    7.6/ 10PepFinder Score

    We may earn a commission. How this works

    From US$59.99/mg (1 mg vial)

    Listing as namedSizePricePer mgStock
    IGF-1 LR3 Peptide (1mg)1 mgUS$59.99US$59.99/mgIn stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  18. 18
    Sparta Labs logo

    Sparta Labs

    US based
    Third-party testing statedCOA page linked, not reviewed✓ Verified owner

    170 products tracked · Delivery 1–3 business days in the US after dispatch · Ships to 1 country · Est. 2025

    Pays byCardCrypto
    4.3 Trustpilot(7)
    7.6/ 10PepFinder Score

    We may earn a commission. How this works

    From US$165.00/mg (1 mg vial)

    Listing as namedSizePricePer mgStock
    IGF-1 LR31 mgUS$165.00
    Store's price · 26 Sept 2026
    US$165.00/mgIn stockOn their site ↗
    IGF-1 LR310 × 1 mg
    10 mg in total
    US$1,155.00
    Store's price · 26 Sept 2026
    US$115.50/mgIn stockOn their site ↗

    Prices as last stated by the supplier or checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  19. 19
    PSPeptides™ logo
    Third-party testing stated

    98 products tracked · Delivery Shipped Shipped Same Day Most Orders Shipped Within 2-24 Hours · Ships to 32 countries

    4.2 Trustpilot(175)
    7.5/ 10PepFinder Score

    We may earn a commission. How this works

    From US$89.99/mg (1 mg vial)

    Listing as namedSizePricePer mgStock
    IGF-1 LR3 (1 Vial)100 mcgUS$24.99US$249.90/mgIn stockOn their site ↗
    IGF-1 LR3 (1 Vial)1 mgUS$89.99US$89.99/mgIn stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  20. 20
    Ares Research logo
    Third-party testing statedCOA page linked, not reviewed✓ Verified owner

    138 products tracked · Delivery 1-2 · Ships to 36 countries · Est. 2026

    Pays byCardBank transferCrypto
    1.0(1)3.6 Trustpilot(37)
    7.4/ 10PepFinder Score

    We may earn a commission. How this works

    From US$109.99/mg (1 mg vial)

    Listing as namedSizePricePer mgStock
    IGF-1 LR3100 mcgUS$44.99US$449.90/mgIn stockOn their site ↗
    IGF-1 LR31 mgUS$109.99US$109.99/mgIn stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  21. 21
    Bluum Peptides logo
    Third-party testing statedCOA page linked, not reviewed

    83 products tracked

    Pays byCardBank transfer
    7.4/ 10PepFinder Score

    We may earn a commission. How this works

    From US$75.00/mg (1 mg vial)

    Listing as namedSizePricePer mgStock
    IGF-1 LR3 1mg1 mgUS$75.00US$75.00/mgIn stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  22. 22
    ezPeps logo

    ezPeps

    US based
    Third-party testing statedCOA page linked, not reviewed

    59 products tracked · Ships to 1 country

    4.8 Trustpilot(173)
    7.4/ 10PepFinder Score

    We may earn a commission. How this works

    From US$65.99/mg (1 mg vial)

    Listing as namedSizePricePer mgStock
    IGF-1 LR31 mgUS$65.99US$65.99/mgIn stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  23. 23
    Peptide Giants logo
    Third-party testing statedCOA page linked, not reviewed

    76 products tracked

    Pays byCardBank transferCrypto
    4.6 Trustpilot(63)
    7.4/ 10PepFinder Score

    We may earn a commission. How this works

    From US$46.00/mg (1 mg vial)

    Listing as namedSizePricePer mgStock
    IGF-1 LR3 1mg1 mgUS$46.00US$46.00/mgIn stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  24. 24
    Alpha Carbon Labs logo
    Third-party testing statedCOA page linked, not reviewed✓ Verified owner

    107 products tracked · Delivery 1-5 days · Ships to 1 country · Est. 2025

    Pays byCardCrypto
    7.3/ 10PepFinder Score

    We may earn a commission. How this works

    From US$135.00/mg (1 mg vial)

    Listing as namedSizePricePer mgStock
    IGF-1LR31 mgUS$135.00US$135.00/mgIn stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  25. 25
    US Peptide Labs logo
    Third-party testing statedCOA page linked, not reviewed✓ Verified owner

    30 products tracked · Delivery 1-2 Business Days · Ships to 1 country · Est. 2026

    Pays byCard
    7.3/ 10PepFinder Score

    We may earn a commission. How this works

    From US$140.00/mg (1 mg vial)

    Listing as namedSizePricePer mgStock
    IGF-1 LR31 mgUS$140.00US$140.00/mgIn stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  26. 26
    Third-party testing statedCOA page linked, not reviewed

    105 products tracked · Ships to 36 countries

    Pays byCardBank transferCrypto
    7.2/ 10PepFinder Score

    We may earn a commission. How this works

    Listing as namedSizePricePer mgStock
    IGF1-LR3As listedUS$69.99—In stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  27. 27
    Licensed Peptides logo
    Third-party testing statedCOA page linked, not reviewed

    278 products tracked · Delivery ship today Most orders arrive in 1–2 business days

    Pays byCard
    7.2/ 10PepFinder Score

    We may earn a commission. How this works

    From US$124.99/mg (1 mg vial)

    Listing as namedSizePricePer mgStock
    IGF-1 LR31 mgUS$124.99US$124.99/mgIn stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  28. 28
    MyPurePeptide logo
    Third-party testing statedCOA page linked, not reviewed

    46 products tracked

    Pays byCardBank transfer
    7.2/ 10PepFinder Score

    We may earn a commission. How this works

    From US$70.00/mg (1 mg vial)

    Listing as namedSizePricePer mgStock
    IGF-1 LR3 1.0mg1 mgUS$70.00US$70.00/mgIn stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  29. 29
    Palmetto Peptides logo
    Third-party testing statedCOA page linked, not reviewed✓ Verified owner

    24 products tracked · Delivery 2-3 business days (USPS Priority Mail) · Ships to 1 country · Est. 2025

    Pays byPayPal
    7.2/ 10PepFinder Score

    We may earn a commission. How this works

    From US$75.00/mg (1 mg vial)

    Listing as namedSizePricePer mgStock
    IGF-1 LR3 1mg Research Peptide | Extended Half-Life IGF-1 Analog | Cell Growth Research | COA Verified1 mgUS$75.00US$75.00/mgIn stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

  30. 30
    True Research Labs logo
    Third-party testing statedCOA page linked, not reviewed

    35 products tracked · Delivery ship within 24 hours · Ships to 1 country

    Pays byCard
    4.1 Trustpilot(151)
    7.2/ 10PepFinder Score

    We may earn a commission. How this works

    From US$55.00/mg (1 mg vial)

    Listing as namedSizePricePer mgStock
    IGF-1LR31 mgUS$55.00US$55.00/mgIn stockOn their site ↗

    Prices as last checked on their site. Packs are compared per mg of the whole pack. The supplier confirms the final price and availability.

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At a glance · 8 Nov 2026

Suppliers serving the US
166 list IGF-1 LR3; 156 with a listing on sale (194 listings confirmed in stock)
Based in the US or shipping in
153 of the 156 stores with IGF-1 LR3 on sale are based in the US; 3 ship in from abroad or do not say where they are based.
Sizes on sale
Suppliers on this page sell IGF-1 LR3 in 100 mcg and 1 mg vials. Some also sell packs of 2 to 100 vials, compared per mg of the whole pack rather than against single vials. Other forms on sale (kit and liquid) are different products and are not compared per mg with vials. How prices are compared
Price per mg, single vials (USD)
US$20.83/mg to US$459.90/mg, median US$85.00/mg, across 131 single-vial listings from 114 suppliers
Price per mg, multi-vial packs (USD)
US$30.00/mg to US$381.70/mg, median US$96.90/mg, across 21 pack listings from 13 suppliers
Test certificates
1 of 166 suppliers have one for IGF-1 LR3 on file with us
Legal status in the US
The FDA treats research peptides sold for human use as unapproved new drugs and has said in 2026 warning letters that research-use-only labels do not change that. Full summary with sources

What IGF-1 LR3 is

IGF-1 LR3 (Long R3 IGF-I) is a laboratory-made analogue of human insulin-like growth factor-1, designed in Adelaide in the early 1990s to bind poorly to the proteins that normally hold IGF-1 in check. It is used as a laboratory reagent and has been studied in rats, mice, pigs and other animals, but we found no published human trials, and it is not an approved medicine. Read the full IGF-1 LR3 guide, with the published research and references.

IGF-1 LR3 market over time

The median listed price per mg across every tracked supplier listing IGF-1 LR3 in each currency, recorded daily from validated listings only. Days with too few listings to publish are left out, not estimated. How we validate prices

USD · median per mg US$85.00/mg

Recorded since 24 Sept 2026 · 124 suppliers and 172 listings on 8 Nov 2026

7 days
no change
30 days
-1.2%
US$84.09US$88.02US$91.9624 Sept 20268 Nov 2026
IGF-1 LR3 median price per mg in USD

Catalogue changes, last 30 days

87 listings added · 71 withdrawn

  1. 8 Nov 2026Optimal LabNew listing: IGF-1 LR3 Cartridge (1mg)
  2. 8 Nov 2026Optimal LabNew listing: IGF-1 LR3 (1mg)
  3. 8 Nov 2026RetalabsRelisted: IGF 1 LR3 (1mg)
  4. 8 Nov 2026RetalabsNo longer listed: IGF 1 LR3 (1mg)
  5. 8 Nov 2026New-U Research CompoundsNew listing: IGF-1 LR3 | Long R3 Insulin-Like Growth Factor-1 (IGF-1 LR3 0.1 mg — 10-vial pack)
  6. 8 Nov 2026New-U Research CompoundsNo longer listed: IGF-1 LR3 (1 mg — 10-vial pack)
  7. 8 Nov 2026New-U Research CompoundsNo longer listed: IGF-1 LR3 (5 mg — 10-vial pack)
  8. 8 Nov 2026New-U Research CompoundsNew listing: IGF-1 LR3 | Long R3 Insulin-Like Growth Factor-1 (IGF-1 LR3 5 mg — 10-vial pack)
  9. 8 Nov 2026New-U Research CompoundsNew listing: IGF-1 LR3 | Long R3 Insulin-Like Growth Factor-1 (IGF-1 LR3 1 mg — 10-vial pack)
  10. 8 Nov 2026New-U Research CompoundsNo longer listed: IGF-1 LR3 (0.1 mg — 10-vial pack)

Before you choose a IGF-1 LR3 supplier

Price per mg is only half the comparison. Check that the supplier publishes a certificate of analysis for the batch it is selling, ideally from an independent laboratory, and that the certificate confirms identity as well as purity: our guide on how to read a COA shows what to look for. A price far below the rest of the list is more often a warning than a bargain; peptide prices explained sets out why.

For what IGF-1 LR3 is and what published studies have found, see our IGF-1 LR3 guide. Handling questions are covered in how to store peptides, and the peptide calculator converts a vial size and water volume into concentration and syringe units. Rules on buying and importing differ by country: read are peptides legal in the US? and see all suppliers serving the US.

Checking a IGF-1 LR3 certificate of analysis

  1. The certificate names a laboratory you can find independently, and ideally one with no stake in the result.
  2. It carries a batch or lot number that matches the product page or the vial label, and a test date.
  3. It confirms identity by mass spectrometry, not only purity by HPLC. Purity alone does not show the vial contains IGF-1 LR3.
  4. It includes the chromatogram and mass spectrum, not just a summary table.
  5. Where the laboratory offers online verification of its reports, the report number checks out.

Red flags

  • No certificates at all, or certificates available only “on request”.
  • The same certificate used for several products or several years of stock.
  • Payment only by cryptocurrency or bank transfer, with a discount for paying that way.
  • A price far below every other supplier on this page.
  • No way to contact the store other than a web form.
  • Vials labelled only with a code rather than the product name and strength.

How to spot a fake peptide supplier explains each of these in more detail, and third-party peptide testing covers what independent results can and cannot prove.

Vials, capsules and pre-mixed products

Most research peptides are sold as freeze-dried (lyophilised) powder in sealed vials, which is mixed with a diluent such as bacteriostatic water before use in the lab. Some suppliers also sell pre-mixed solutions, nasal sprays or capsules under the same name. These are different products with different stability and dosing, so compare price per mg only between the same form, and check which form a listing is before comparing it with the rest of the table.

IGF-1 LR3 in the US: questions

Where can I buy IGF-1 LR3 in the US?

166 of the suppliers PepFinder tracks list IGF-1 LR3 and are based in the US. The highest rated are Novel Human Optimization Ventures, Rivn Peptides, Peak Lab Peptides. The list on this page is ranked by PepFinder Score, which weighs reliability, delivery, pricing, support and customer reviews; stores shipping in from abroad are not included in the US's prices; nobody pays to be included or to rank higher.

How much does IGF-1 LR3 cost in the US?

Listed prices in USD run from US$20.83/mg to US$459.90/mg, median US$85.00/mg, across 131 single-vial listings from 114 suppliers. Packs of several vials run from US$30.00/mg to US$381.70/mg, median US$96.90/mg, across 21 pack listings from 13 suppliers. Compare price per mg rather than price per vial, and only within one currency; a price far below the rest is more often a warning than a bargain.

Who sells IGF-1 LR3 cheapest in the US?

BioPep lists the lowest validated single-vial price per mg in the US, US$20.83/mg for a 1.08 mg vial, against a market median of US$85.00/mg, as last checked on 8 Nov 2026. The cheapest listing is not automatically the best buy: weigh it against the store's PepFinder Score, its test certificates and its customer reviews, all shown on this page.

What sizes is IGF-1 LR3 sold in?

Suppliers on this page sell IGF-1 LR3 in 100 mcg and 1 mg vials. Some also sell packs of 2 to 100 vials, compared per mg of the whole pack rather than against single vials. Other forms on sale (kit and liquid) are different products and are not compared per mg with vials. Most research peptides are sold as freeze-dried powder in sealed vials.

Is it legal to buy IGF-1 LR3 in the US?

The FDA treats research peptides sold for human use as unapproved new drugs and has said in 2026 warning letters that research-use-only labels do not change that. Our page on whether peptides are legal in the US sets out the rules with a link to every source. This is general information, not legal advice.

Can IGF-1 LR3 be shipped to the US?

The FDA says it is illegal in most circumstances for individuals to import drugs for personal use, and shipments it considers unapproved drugs can be refused entry. Each supplier on this page shows where it is based, so you can see whether an order would cross a border.

How do I check a IGF-1 LR3 supplier's test results?

Ask for a certificate of analysis for the batch being sold, and check that it names the laboratory, the batch number and the test date, and that it confirms identity by mass spectrometry as well as purity by HPLC. 1 of the suppliers on this page have a certificate for IGF-1 LR3 on file with PepFinder, shown under their listing.

How this list is built: suppliers appear because they list IGF-1 LR3 on their own website, read by our catalogue checks; nobody pays to be included or to move up. Ranking is by PepFinder Score, with stores that have nothing on sale after those that do. Prices, sizes and stock are as each site listed them when checked and may have changed.