Growth-hormone axis · 2 vendors stocking
Long R3 IGF-1, IGF-1 Long R3
Every point is published and checkable — how the value score is built ›
| Vendor | Listing | Size | Vial price | Per milligram, after code | Value | |
|---|---|---|---|---|---|---|
| ZestyRat Best buy | IGF-1 LR3 – 1mg | 1mg | $89.99 | $80.99 |
8.6 | View › |
| Dynamic | IGF-1 LR3 1mg | 1mg | $99.99 | $99.99 | 6.3 | View › |
Every row read from the vendor's live storefront on August 26, 2026. Ordered by value score, not by sticker price. Vials only — capsules, sprays and serums are excluded. Method ›
IGF-1 LR3 is a modified insulin-like growth factor 1 analog with an arginine substitution and a 13-amino-acid N-terminal extension that reduce binding-protein affinity. It is sold in 1mg vials, an order of magnitude smaller than most peptides here.
Deeper background, sourcing and quality notes live on our sister site: Peptides Uncaged ›
Always-on partner code, re-tested at a live checkout. It stacks on the prices above, so a ZestyRat row within 10% of the leader is usually the cheaper order. Every other working code is on the Deal Board.
Questions
The cheapest IGF-1 LR3 vial across the four storefronts we index is ZestyRat Research at $89.99 for the 1mg vial — $89.99 per milligram Prices were read from the vendors' live catalogues on August 26, 2026.
ZestyRat Research, at $89.99 per milligram. That is 10% below the next-cheapest vendor on the board. The vendor our readers order from most, and every reader order has shipped. Ships the same day on orders placed before 3pm ET, USPS Priority. A free researcher account (21+) is set up once at checkout.
Across the vendors we index: 1mg. Larger vials are almost always cheaper per milligram, which is why the table above is sorted on that column rather than on sticker price.
The per-milligram figure on IGF-1 LR3 will look enormous next to everything else on this board. That is the 1mg vial size, not a markup — compare IGF-1 LR3 rows only to each other.
No. IGF-1 LR3 is sold by every vendor listed here for laboratory research use only. Nothing on this page is medical advice or a recommendation to use any compound.
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