In a compounded formulation that might sit in your refrigerator for weeks, stability of the ingredients matters enormously
I tried something recently that really kicked me into a new gear
This prevents bacterial growth, making it suitable for multi-dose applications and safe for mixing or diluting injectable medications

Day cream: Water, Cetyl Alcohol, Glycerin, Ethylhexyl, Methoxycinnate, Glyseryl Stearate, Caprilyc/Capric Triglyceride, Glycol Stearate, Hydrogenated Polydecene, Cyclotetrasiloxane, C12-15 Alkyl Benzoate, Potassium Palmitoyl, Hydrolyzed Wheat Protein, Titanium Dioxide, Arbutin, Citric Acid, Aminopropyl Ascorbyl Phosphate, Glutathione, Cyclopentasiloxane, Butyrospermun Parkii Butter, Butylene Glysol, Phenoxyethanol, Caprylyl methicone, Ceteareth-20, Olus Oil, Propanediol, Cetyl Alcohol, Cetyl Alcohol, Alumina,PEG-75 Stearate, Alcohol, Dipotassium Glycyrrhizate, Tetrasodium EDTA, Isopropyl Titanium, Triisostearate/triethoxycaprylylsilane, Crosspolymer, Polyhydroxystearic Acid, Steareth-20, Caprylyl, Ceteth-20, Bacillus/Folic Acid Ferment Filtrate Extract, Hydrolyzed Rice Bran protein, Iris Florentina Root Extract, Nutyl Methoxydibenzoylmethane, Sodium Sulfite, Zinc Sulfate, Retinyl Palmitate, Sodium Hya luronate, 1,2- Hexanediol, Glycerin Soy Protein, Superoxide Dismutase, Sodium Benzoate, Acetyl Tyrosine, Saxifraga Sarmentosa Extract, Paeonia Suffruticosa Root Extract, Scutellaria Baicalensis Root Extract, Sodium Dextran Sulfate, Potassium Sorbate

However, its important to note that many doctors rule out B12 deficiency in earlier stages when macrocytosis is absent
2018;5:e000668