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The 2.0 mL dilution gives a clean 2,500 IU/mL, so a 500 IU maintenance dose reads at exactly 20 units on a U-100 syringe
That limitation is what pushed many people toward injections in the first place and what makes a properly formulated sublingual strip such a meaningful advancement
Who Needs Vitamin B12 Injections and Why
Because oral glutathione is broken down significantly during digestion, injections are sometimes used to deliver it more directly
30 L-Glutathione capsules with a complex of antioxidants and minerals
Pharmacologists call this a PK-PD disconnect, and it means a short half-life is not evidence of a short-lived effect, nor a long one evidence of a lasting one
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