Your body does not make vitamin B12 on its own, so you have to get it from outside sources
If you use another B12 injection kit (hopefully not cyano B12), aim for at least 1 mg of B12 per shot, which is plenty
This may be at room temperature [20-25C (68-77F)] or refrigerated [2-8 C (36 -46 F)]
Water (Aqua), Aloe Barbadensis Leaf Juice, SD Alcohol 40-B (Alcohol Denat.), Alanine/Histidine/LysinePolypeptide Copper HCl, Panthenol, Arginine, Lactic Acid, Polyquaternium-16, Butylene Glycol, Biotin, PEG-12 Dimethicone, Glycerin, Pisum Sativum (Pea) Sprout Extract, Lavandula Angustifolia (Lavender) Flower Extract, Camellia Sinensis (Green Tea) Leaf Extract, Scutellaria Baicalensis Root Extract, Propanediol, Menthol, Pinanediol, Camphanediol, Polyquaternium-44, Amodimethicone, Hydrolyzed Quinoa, Coco-Caprylate, Isomalt, Xylitol, Glycine Soja (Soybean) Germ Extract, Triticum Vulgare (Wheat) Germ Extract, Guar Hydroxypropyltrimonium Chloride, Cetrimonium Chloride, Trideceth-12, Phenoxyethanol, Ethylhexylglycerin, Potassium Sorbate, Sodium Benzoate