New and unopened Breastfeeding or postnatal vitamins Proceive Breastfeeding is scientifically formulated to support the nutritional needs of new mothers when breastfeeding and after pregnancy. Key Nutrients For Breastfeeding and After Pregnancy Comprehensive formula of 24 Vitamins & Minerals Tailored for new and breastfeeding mothers This is a comprehensive, active blend of 24 key vitamins and minerals scientifically formulated for this stage.