Pure Lab Vitamins Carbonyl Iron 

Carbonyl® Iron is an ideal source of essentially pure iron with low toxicity, minimal metallic taste, no gastro-intestinal pain nor constipation and excellent bioavailability of 69%. 

It absorbs at 69%, compared to only 10 to 15% with most other forms of iron.

The high iron content and high absorption rate results in lower dose per capsules, achieving the same or better daily intake levels, compared to ferrous (Fe2+) salts (e.g., ferrous sulfate, ferrous fumarate, or ferrous gluconate), while at the same time and most importantly, side effects like constipation and gastro-intestinal discomfort and pain are avoided.

Medicinal Ingredients (per dose unit): Iron (Iron, Carbonyl) 22.5 mg, Vitamin C (L-Ascorbic acid) 100 mg.

Non-Medical Ingredients: 100% vegetarian capsule, Cellulose, Magnesium Stearate (veg. source), Silicon Dioxide.

Contains no: sugar, salt, yeast, wheat, gluten, milk, egg, shellfish or preservatives.

Pure and certified Gluten Free. Pure Lab Vitamins is an Ottawa-based natural health company