b12 injections im or sc Cyanocobalamin Injection – 1000 mcg/mL Sublingual B12 vs. B12 Injections:

USP-compliant for sterility and purity

Its short half-life (~30 minutes) mimics natural physiological GHRH pulses without continuous stimulation

NASO B12

GH & IGF-1 support Studied as a GH secretagogue for its effect on pulsatile growth hormone and downstream IGF-1 in animal models

A nasal spray sold in a multi-dose pump bottle at room temperature with no published accelerated stability data is a formulation where you cannot know what concentration of intact peptide you are actually delivering

Cartilage & Joint Protection Because DSIP is often studied for sleep regulation , it is natural to compare it with melatonin , the most widely used sleep supplement: AOD-9604 demonstrated chondroprotective effects in models of cartilage degradation. May reduce proteoglycan loss and support collagen maintenance