New Insights on Muscle Strength: The Role of Inhibiting an Enzyme that Hinders NAD+ Synthesis University of Texas Medical Branch researchers show that treating with an inhibitor of an enzyme that breaks down an NAD+ precursor enhances muscle strength and endurance and shortens recovery time in aged mice
Rx B12 Forte contains a higher concentration of cyanocobalamin per milliliter

Major Ingredients Water, Dibutyl Adipate, Propanediol, Diethylamino Hydroxybenzoyl Hexyl Benzoate, Caprylyl Methicone, Ethylhexyl Triazone, Polymethylsilsesquioxane, Methylene Bis-Benzotriazolyl Tetramethylbutylphenol, Butyloctyl Salicylate, Diethylhexyl Butamido Triazone, Glycerin, 1,2-Hexanediol, Butylene Glycol, Pentylene Glycol, Vinyl Dimethicone/Methicone Silsesquioxane Crosspolymer, Poly C10-30 Alkyl Acrylate, Decyl Glucoside, Polyglyceryl-3 Methylglucose Distearate, Tromethamine, Behenyl Alcohol, Carbomer, Centella Asiatica Leaf Water, Niacinamide, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Polyacrylate Crosspolymer-6, Sodium Stearoyl Glutamate, Stearyl Alcohol, Ethylhexylglycerin, Arachidyl Alcohol, Glutathione, Xanthan Gum, Cetyl Alcohol, Dipropylene Glycol, Squalane, Asiaticoside, Madecassic Acid, Asiatic Acid, Sodium Hyaluronate, Melaleuca Alternifolia (Tea Tree) Leaf Extract, Hippophae Rhamnoides Fruit Extract, Hydrolyzed Collagen, Beta-Glucan, Caprylyl Glycol, Nelumbium Speciosum Flower Extract, Artemisia Annua Extract, Oryza Sativa (Rice) Extract, Saccharomyces Ferment, Solanum Melongena (Eggplant) Fruit Extract Ingredients subject to change at manufacturer's discretion

The general bacteriostatic water guide covers the math for all common vial sizes