There is 20mg of USP Progesterone per 1/4 teaspoon of Pro-Gest and 450mg of USP Progesterone per ounce. Ingredients include USP Progesterone, Vitamin E, Aloe Vera, Safflower Seed Oil, Sweet Almond Oil. Also, it's paraben-free. Ingredients: Water (Purified), Tocopheryl Acetate (Vit E), Aloe Barbadensis (Aloe Vera) Leaf Juice, Carthamus Tinctorius (Hybrid Safflower) Seed Oil, Panthenol, Glycerin, Prunus Amygdalus Dulcis (Sweet Almond) Oil, Glyceryl Stearate, Cetyl Alcohol, Sodium Behenoyl Lactylate, Stearic Acid, USP Progesterone, Phenoxyethanol, Caprylyl Glycol, Sorbic Acid, Carbomer, and Potassium Hydroxide.Why is Pro-Gest Cream so trusted? Because it's been the leader since 1978. For over 30 years, women have relied on Pro-Gest for midlife balance.No Parabens, mineral oil, petroleum or animal anything. Never tested on animals.