The expiration date is printed on each vial label
Ans: A 3.7 oz (105 g) bottle contains approximately 210 servings at the 1/4 teaspoon dose for pets under 10 lb, or approximately 105 servings at the 1/2 teaspoon dose for pets over 10 lb

Water, Dibutyl Adipate, Propanediol, Diethylamino Hydroxybenzoyl Hexyl Benzoate, Ethylhexyl Triazone, Methylene Bis-benzotriazolyl Tetramethylbutylphenol, Butyloctyl Salicylate, Caprylyl Methicone, Polymethylsilsesquioxane, Diethylhexyl Butamido Triazone, Glycerin, Butylene Glycol, 1,2-hexanediol, Vinyl Dimethicone/methicone Silsesquioxane Crosspolymer, Pentylene Glycol, Poly C10-30 Alkyl Acrylate, Polyglyceryl-3 Methylglucose Distearate, Behenyl Alcohol, Decyl Glucoside, Tromethamine, Carbomer, Acrylates/c10-30 Alkyl Acrylate Crosspolymer, Niacinamide, Centella Asiatica Leaf Water, Stearyl Alcohol Arachidyl Alcohol, Sodium Stearoyl Glutamate, Polyacrylate Crosspolymer -6, Ethylhexylglycerin, Glutathione, Cetyl Alcohol, T-butyl Alcohol, Dipropylene Glycol, Squalane, Benzyl Glycol, Hydrolyzed Glycosaminoglycans, Sodium Hyaluronate, Asiaticoside, Madecassic Acid, Asiatic Acid, Hippophae Rhamnoides Fruit Extract, Melaleuca Alternifolia (Tea Tree) Leaf Extract, Sodium Hyaluronate Crosspolymer, Hydrolyzed Hyaluronic Acid, Hydrolyzed Collagen, Beta-glucan, Artemisia Annua Extract, Oryza Sativa (Rice) Extract, Nelumbo Nucifera Extract, Saccharomyces Ferment, Hydroxypropyltrimonium Hyaluronate, Solanum Melongena (Eggplant) Fruit Extract, Hyaluronic Acid, Sodium Acetylated Hyaluronate

By neutralizing free radicals, glutathione prevents damage to hair follicle cells, reducing thinning, breakage, and premature graying