IRON BIOSERIES 15CT. Features: DESIGNED FOR OPTIMAL ABSORPTION: BioSeries Technology combined with alternate-day dosing, designed to support the release of iron when the bodys hepcidin levels are typically lower, for optimal iron absorption.*. BLOOD-BOOSTING: Designed with bioavailable ferrous bisglycinate to support iron levels, which promotes red blood cell formation, oxygen transport, and energy metabolism.*. GI COMFORT: Gentle ferrous bisglycinate and a time-release formula designed to help ease gastrointestinal side effects, including occasional constipation.*. PREGNANCY-SAFE: Featuring ingredients validated for safety by a toxicologist, in a form and dose safe for pregnancy and nursing.*. FORMULATED WITH VITAMINS A AND C: to help support iron absorption*. Key Ingredients: Designed with bioavailable ferrous bisglycinate to support iron levels.*. :