Lactobacillus acidophilus which contains over 100 million active lactobacillus acidophilus (including the naturally occurring metabolic product produced by lactobacilli) at the time of manufacture. Other ingredients: vegetable cellulose, vegetable stearic acid, silica, vegetable magnesium stearate.
Manufacturer likely did not include an allergen statement; however, please double-check the product packaging and/or contact the manufacturer if you have a severe food allergy.