Clarke R, Evans J, Schneede J, Nexo E, Bates C, Fletcher A, et al: Vitamin B12 and folate deficiency in later life
Not all medications and nutrients are small enough to get absorbed or need breakdown via gastric enzymes for activation for the sublingual route, but whenever possible there is a benefit to using this route as it bypasses potential damage/absorption issues in the GI tract
If you're taking HCG to try to boost natural testosterone production, adding external testosterone will suppress that natural production
This type of water contains benzyl alcohol, which helps inhibit bacterial growth and is typically used for subcutaneous injection
For proper storage of your reconstituted peptide, see our guide on does bacteriostatic water need to be refrigerated and how long does bacteriostatic water last