Immune Support for DogsThe use of bovine colostrum as a supplement goes back thousands of years to Ayurvedic medicine. Colostrum contains over 90 immune factors, including the naturally occurring immunoglobulins IgG and IgA. It provides over 70 different growth factors for cellular support. Bovine colostrum powder provides bioactive proteins, peptides, and probiotics. Our colostrum provides 38% IgG.Sourced from grass-fed, rBGH-free cows. Colostrum-38 K9™ is responsibly collected only after the first 12 hours of birth and within a 36-hour time frame, when the colostrum is at its peak. Calves alone receive it during the first 12 hours; after that, it is shared.Directions for Use:Scoop Included = 1/4 tsp (472 mg)• Dogs under 10 lbs: one pinch (1/16 tsp)• Small Dogs (11-25 lbs): ⅛ tsp once daily• Medium or Large Dogs (26-99 lbs): ¼ tsp once daily• Extra Large Dogs (100 lbs or more): ½ tsp once daily. Active Ingredient (per 472mg):rBGH-free Bovine Colostrum........... 472 mgNo Preservatives, Fillers, Binders, or added Flavorings (artificial or "natural")