Pro-Gest Natural Progesterone Cream Paraben Free 2 oz from EmeritaPro Gest Natural Progesterone Cream goes paraben free. Who knew a little tube of cream could change the world? In 1978 we had a revolutionary idea: that there was not enough choice when it came to support for PMS and peri menopause. So we created Pro Gest to give women a much deserved alternative. It's the only progesterone cream that's been clinically tested. It's the best selling progesterone cream available anywhere (and has been for many years).