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From Free consultation Prevention and management advice for long-haul travel
Who Should Consider Oral B12 Supplements
You'll need bacteriostatic water (BAC water, not regular sterile water the benzyl alcohol prevents bacterial growth in multi-dose vials)
Solubility Profiles : GHK-Cu typically exhibits better aqueous solubility, while AHK-Cu may require specific solvents for optimal formulation integration
It contains 0.9% (9 mg/mL) benzyl alcohol, which functions as a bacteriostatic preservative by inhibiting microbial growth in the vial
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