Source comparison
IGF-1 LR3 Before and After: Protocol Comparison
The following table compares three common IGF-1 LR3 research protocol structures based on published methodology and observed outcomes in controlled settings. Each protocol varies in dose, frequency, and timing. These differences produce measurably different re
This comparison does not assign a generated winner or score.
- The following table compares three common IGF-1 LR3 research protocol structures based on published methodology and observed outcomes in controlled settings. Each protocol varies in dose, frequency, and timing. These differences produce measurably different results.
- Standard Research Protocol
- 40–60 mcg/day
- Post-workout with carbohydrate meal
- 4–6 weeks
- +1.5–2.5 kg lean mass
- Moderate if fasted; low if fed
- Most balanced approach for measurable anabolic outcomes with manageable risk profile. Aligns with published clinical methodology
- High-Dose Protocol
- 80–100 mcg/day
- Split AM/PM dosing
- 4 weeks maximum
- +2.0–3.0 kg lean mass
- High, especially fasted state
- Receptor saturation occurs below this dose range. Increased adverse events without proportional benefit
- Low-Dose Extended Protocol
- 20–30 mcg/day
- Morning administration
- 8–12 weeks
- +1.0–2.0 kg lean mass
- Low
- Slower accretion rate but extended timeline allows adaptation. Suitable for protocols prioritizing minimal metabolic disruption
- The standard research protocol at 40–60 mcg/day post-workout remains the most cited in peer-reviewed literature because it produces measurable anabolic outcomes while minimizing glucose regulation issues. High-dose protocols show diminishing returns. IGF-1R saturation means additional peptide doesn't increase signaling intensity but does increase off-target effects including insulin receptor cross-activation and suppressed endogenous IGF-1 production.