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The best way for the body to retain B12 is through a B12 injection that goes right into the bloodstream
Choose IGF-1 LR3 if: You prefer once-daily dosing for extended research protocols You want sustained, consistent signalling over 20-30 hours Your research spans weeks to months (practical dosing advantage) You want the most widely available option from UK suppliers Choose IGF-1 DES if: You require maximum IGF-1 receptor selectivity without any insulin receptor activity You want the highest possible bioavailability (lowest IGFBP binding) Your research requires more frequent blood sampling or monitoring (shorter half-life allows faster assessment of washout) You prefer more pronounced peaks in signalling for acute study designs Conclusion IGF-1 LR3 and IGF-1 DES are both valuable research tools with distinct advantages
These factors suggest starting slightly higher than the minimum effective clinical dose to account for real-world variability
Not to exhaustion
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