Understand the source comparison
Best IGF-1 LR3 for Anabolic Research: Quality Comparison
When evaluating IGF-1 LR3 suppliers for anabolic research, these factors determine reliability and reproducibility. Research-Grade ≥98% by HPLC + MS confirmation of 9117.5 Da molecular weight Lyophilized, shipped with cold packs, stored at −20°C CoA with batch
No winner is assigned.
This page preserves a source comparison for education. It does not add a rating, recommendation or clinical judgment.
- When evaluating IGF-1 LR3 suppliers for anabolic research, these factors determine reliability and reproducibility.
- Research-Grade
- ≥98% by HPLC + MS confirmation of 9117.5 Da molecular weight
- Lyophilized, shipped with cold packs, stored at −20°C
- CoA with batch number, chromatogram, endotoxin levels, synthesis date
- Dissolves completely in bacteriostatic water within 60 seconds, no cloudiness
- Required for reproducible data. Verified structure and purity ensure dose-response reliability
- Commercial-Grade
- 95–97% by HPLC, no MS confirmation
- Lyophilized, shipped ambient or refrigerated
- Generic CoA without batch-specific data
- Dissolves with extended mixing, occasional cloudiness
- Acceptable for preliminary pilot studies but introduces variability in dose-finding experiments
- Degraded/Reseller
- <95% purity or no analytical data
- Pre-dissolved or lyophilized without cold-chain documentation
- No CoA, or CoA from different batch
- Requires vigorous shaking, visible particulates, or incomplete dissolution
- Unreliable. Sequence truncations and aggregates compete for receptors without activating signaling