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IGF-1 LR4
In people
People using it after training describe the same pattern as LR3: a strong pump, faster recovery and denser muscle over three to four weeks. Soft-tissue strains ease. Blood sugar can dip within an hour, so it is taken with carbohydrate. Some notice hunger, mild headache or water in the hands. Gains hold when training and protein stay high.
Sources
Read the original sources
- Novel recombinant fusion protein analogues of insulin-like growth factor (IGF)-I indicate the relative importance of IGF-binding protein and receptor binding for enhanced biological potency (Abstract · checked 2026-10-13)
- Роль инсулиноподобного фактора роста-I в метаболизме, регуляции клеточного обновления и процессах старения (Gennadinik, Nelaeva, Obesity and Metabolism 2010) (Abstract · checked 2026-10-13)