Convenience, Frequency, And Cost Injections Require syringes, safe disposal, and usually medical supervision Often weekly or monthly, depending on protocol Costs can add up with repeated clinic visits Nasal spray Takes a few seconds, wherever you are Easy to build into a daily routine No sharps, no office visit, and generally lower ongoing cost For many busy professionals, athletes, and biohackers, nasal sprays offer most of the benefits of injections with a lower barrier to consistent use
You're back to manual calculations or guessing
Looking at this schedule, a single 30 mg vial covers weeks 1 through 8 completely (10 mg at 2.5 mg/week for 4 weeks, then 20 mg at 5 mg/week for 4 weeks, totaling 30 mg)
Oral supplements, due to their lower absorption rates, often require weeks or months to produce similar results