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Growth hormone axis

IGF-1 Long R3 Price Comparison

Extended IGF-1 analogue widely used as a cell-culture growth supplement.

Also referred to as: Long Arg3 Insulin-Like Growth Factor 1

UK supplier comparison

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For in-vitro laboratory research only

IGF-1 Long R3 is listed here as a research material. It is not for human or veterinary consumption, and nothing on this page is medical advice or dosing guidance. PeptideCompare is paid by flat supplier fees — never by sales commission or referral — so a price ranks by its number, not by who pays. We do not sell, test or verify any product, and quality or CoA labels are suppliers’ own claims. Always check the final price, documentation and legality with the supplier yourself.

Research profile

About IGF-1 Long R3 in the lab

IGF-1 LR3 has an arginine substitution at position 3 and a 13-amino-acid N-terminal extension. These changes reduce binding-protein capture and extend its activity. It is a common serum-free culture supplement in biomanufacturing.

Proposed mechanism

Agonist of the IGF-1 receptor with low affinity for IGFBPs, giving sustained PI3K–Akt and MAPK signalling in cultured cells.

Typical research themes

  • Cell-culture supplements
  • IGF-1 receptor
  • Bioprocessing

This profile is a short, general summary of publicly discussed science. It is not exhaustive, not peer-reviewed by PeptideCompare, and is not medical advice. PeptideCompare provides no dosing, protocol or usage guidance — nothing here is for human or veterinary use.

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