Active Iron Advance is clinically proven to increase iron and support haemoglobin formulation. Active Iron’s ground breaking formulation targets the body’s natural site of iron absorption, the DMT-1, delivering 2x better absorption of Iron Sulphate. Gastrointestinal side effects are the major cause for poor adherence with oral iron products. Active Iron Advance is different. Its ground-breaking protein formula has been specially developed to be non-constipating and helps reduce gut irritation from iron. Active Iron Advance is Kind & Strong.