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HomeCompoundsIGF-1 LR3

IGF-1 LR3 (IGF-1 LR3)

Peptide

IGF-1 LR3

⚠️ IGF-1 LR3 is a modified IGF-1 with extended half-life. Can induce muscle hyperplasia (increase in the number of fibers). Effects very different from HGH. Risk of hypoglycemia and growth of unwanted tissues. Advanced protocols only.

Half-life

20–30 heures

Detection

Non détecté usuellement

Injectable

Dosages

Beginner20–30 mcg/j
Intermediate40–60 mcg/j
Advanced80–100 mcg/j
Female10-20 mcg/day

Frequency : 1× / day post-workout (cycles of 4-6 weeks max)

Effects

  • Muscle hyperplasia (new muscle nuclei)
  • Exceptional recovery
  • Lipolysis
  • Anti-catabolism

Side effects

  • Hypoglycemia (monitor blood sugar)
  • Growth of existing tissues (organs, tumors if predisposed)
  • Bodybuilder gut (HGH gut) long-term

Support supplements

Carbs post-injection (hypoglycemia)ZincVitamin D3

Synergies & stacks

HGHSteroidsInsulin (advanced protocols)

Avoid

  • People with cancer predispositions
  • Cycles > 6 weeks (sensitivity loss)
  • Without blood-sugar monitoring

AnaProtoKol is a health and performance tracking tool. This information is provided for educational purposes only and does not constitute medical advice. Consult a qualified healthcare professional before starting any protocol.

Sources

Studies and scientific publications this guide relies on.

  1. Tomas FM, Knowles SE, Owens PC, et al. (1992). Insulin-like growth factor-I (IGF-I) and especially IGF-I variants are anabolic in dexamethasone-treated rats. Biochemical Journal. doi: 10.1042/bj2820091

    Étude préclinique pivot : les variants IGF-I (dont LR3-IGF-I) sont 2,5-3× plus anaboliques que l'IGF-1 natif chez le rat traité à la dexaméthasone, par moindre liaison aux IGFBP et demi-vie sérique prolongée — base pharmacologique du choix LR3 en bodybuilding.

  2. Holt RI, Sönksen PH (2008). Growth hormone, IGF-I and insulin and their abuse in sport. British Journal of Pharmacology. doi: 10.1038/bjp.2008.99

    Revue : IGF-1 et ses analogues (LR3, DES) sont l'effecteur final de l'axe GH/IGF-1 — administration directe court-circuite l'hypophyse mais entraîne une hypoglycémie risquée par activation directe du récepteur insuline à doses élevées.

  3. Renehan AG, Brennan BM (2008). Acromegaly, growth hormone and cancer risk. Best Practice & Research Clinical Endocrinology & Metabolism. doi: 10.1016/j.beem.2008.08.011

    Revue : exposition chronique à des taux supraphysiologiques de GH/IGF-1 (acromégalie) augmente le risque oncologique (côlon, thyroïde) — base de la précaution pour IGF-1 LR3 dont l'administration directe expose à des taux sériques plus élevés que la GH.

  4. Pope HG Jr, Wood RI, Rogol A, et al. (2014). Adverse health consequences of performance-enhancing drugs: an Endocrine Society scientific statement. Endocrine Reviews. doi: 10.1210/er.2013-1058

    Énoncé Endocrine Society : IGF-1 et analogues (LR3, DES) sont marqués par un risque d'hypoglycémie aiguë, hypertrophie tissulaire prolongée à doses élevées et signal oncologique théorique — usage non encadré déconseillé.

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AnaProtoKol is a health and performance tracking tool. This information is provided for educational purposes only and does not constitute medical advice. Consult a qualified healthcare professional before starting any protocol.