Why is Pro-Gest® Cream so trusted? Maybe because it's been the leader since 1978. For over 30 years, women have relied on Pro-Gest® for midlife balance. Our Pro-Gest® 4 oz. value-size tube contains a two-month supply. 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.